fiftyone.utils.eval.regression#

Regression evaluation.

Copyright 2017-2025, Voxel51, Inc.
voxel51.com

Functions:

evaluate_regressions(samples, pred_field[, ...])

Evaluates the regression predictions in the given collection with respect to the specified ground truth values.

Classes:

`RegressionEvaluationConfig`(pred_field, gt_field)	Base class for configuring `RegressionEvaluation` instances.
`RegressionEvaluation`(config)	Base class for regression evaluation methods.
`SimpleEvaluationConfig`(pred_field, gt_field)	Base class for configuring `SimpleEvaluation` instances.
`SimpleEvaluation`(config)	Simple regression evaluation.
`RegressionResults`(samples, config, eval_key, ...)	Class that stores the results of a regression evaluation.

fiftyone.utils.eval.regression.evaluate_regressions(samples, pred_field, gt_field='ground_truth', eval_key=None, missing=None, method=None, custom_metrics=None, progress=None, **kwargs)#

Evaluates the regression predictions in the given collection with respect to the specified ground truth values.

You can customize the evaluation method by passing additional parameters for the method’s config class as kwargs.

The natively provided method values and their associated configs are:

"simple": SimpleEvaluationConfig

If an eval_key is specified, then this method will record some statistics on each sample:

When evaluating sample-level fields, an eval_key field will be populated on each sample recording the error of that sample’s prediction.
When evaluating frame-level fields, an eval_key field will be populated on each frame recording the error of that frame’s prediction. In addition, an eval_key field will be populated on each sample that records the average error of the frame predictions of the sample.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
pred_field – the name of the field containing the predicted fiftyone.core.labels.Regression instances
gt_field ("ground_truth") – the name of the field containing the ground truth fiftyone.core.labels.Regression instances
eval_key (None) – a string key to use to refer to this evaluation
missing (None) – a missing value. Any None-valued regressions are given this value for results purposes
method (None) – a string specifying the evaluation method to use. The supported values are fo.evaluation_config.regression_backends.keys() and the default is fo.evaluation_config.default_regression_backend
custom_metrics (None) – an optional list of custom metrics to compute or dict mapping metric names to kwargs dicts
progress (None) – whether to render a progress bar (True/False), use the default value fiftyone.config.show_progress_bars (None), or a progress callback function to invoke instead
**kwargs – optional keyword arguments for the constructor of the RegressionEvaluationConfig being used

Returns:

a RegressionResults

class fiftyone.utils.eval.regression.RegressionEvaluationConfig(pred_field, gt_field, custom_metrics=None, **kwargs)#

Bases: BaseEvaluationMethodConfig

Base class for configuring RegressionEvaluation instances.

Parameters:

pred_field – the name of the field containing the predicted fiftyone.core.labels.Regression instances
gt_field ("ground_truth") – the name of the field containing the ground truth fiftyone.core.labels.Regression instances
custom_metrics (None) – an optional list of custom metrics to compute or dict mapping metric names to kwargs dicts

Attributes:

`type`	The type of run.
`cls`	The fully-qualified name of this `BaseRunConfig` class.
`method`	The name of the method.
`run_cls`	The `BaseRun` class associated with this config.

Methods:

`attributes`()	Returns the list of class attributes that will be serialized by `serialize()`.
`base_config_cls`(type)	Returns the config class for the given run type.
`build`()	Builds the `BaseRun` instance associated with this config.
`builder`()	Returns a ConfigBuilder instance for this class.
`copy`()	Returns a deep copy of the object.
`custom_attributes`([dynamic, private])	Returns a customizable list of class attributes.
`default`()	Returns the default config instance.
`from_dict`(d)	Constructs a `BaseRunConfig` from a serialized JSON dict representation of it.
`from_json`(path, args, *kwargs)	Constructs a Serializable object from a JSON file.
`from_kwargs`(**kwargs)	Constructs a Config object from keyword arguments.
`from_str`(s, args, *kwargs)	Constructs a Serializable object from a JSON string.
`get_class_name`()	Returns the fully-qualified class name string of this object.
`load_credentials`(**kwargs)	Loads any necessary credentials from the given keyword arguments or the relevant FiftyOne config.
`load_default`()	Loads the default config instance from file.
`parse_array`(d, key[, default])	Parses a raw array attribute.
`parse_bool`(d, key[, default])	Parses a boolean value.
`parse_categorical`(d, key, choices[, default])	Parses a categorical JSON field, which must take a value from among the given choices.
`parse_dict`(d, key[, default])	Parses a dictionary attribute.
`parse_int`(d, key[, default])	Parses an integer attribute.
`parse_mutually_exclusive_fields`(fields)	Parses a mutually exclusive dictionary of pre-parsed fields, which must contain exactly one field with a truthy value.
`parse_number`(d, key[, default])	Parses a number attribute.
`parse_object`(d, key, cls[, default])	Parses an object attribute.
`parse_object_array`(d, key, cls[, default])	Parses an array of objects.
`parse_object_dict`(d, key, cls[, default])	Parses a dictionary whose values are objects.
`parse_path`(d, key[, default])	Parses a path attribute.
`parse_raw`(d, key[, default])	Parses a raw (arbitrary) JSON field.
`parse_string`(d, key[, default])	Parses a string attribute.
`serialize`([reflective])	Serializes the object into a dictionary.
`to_str`([pretty_print])	Returns a string representation of this object.
`validate_all_or_nothing_fields`(fields)	Validates a dictionary of pre-parsed fields checking that either all or none of the fields have a truthy value.
`write_json`(path[, pretty_print])	Serializes the object and writes it to disk.

property type#: The type of run.

attributes()#

Returns the list of class attributes that will be serialized by serialize().

Returns:: a list of attributes

static base_config_cls(type)#

Returns the config class for the given run type.

Parameters:: type – a BaseRunConfig.type
Returns:: a BaseRunConfig subclass

build()#

Builds the BaseRun instance associated with this config.

Returns:: a BaseRun instance

classmethod builder()#: Returns a ConfigBuilder instance for this class.

property cls#: The fully-qualified name of this BaseRunConfig class.

copy()#

Returns a deep copy of the object.

Returns:: a Serializable instance

custom_attributes(dynamic=False, private=False)#

Returns a customizable list of class attributes.

By default, all attributes in vars(self) are returned, minus private attributes (those starting with “_”).

Parameters:

dynamic – whether to include dynamic properties, e.g., those defined by getter/setter methods or the @property decorator. By default, this is False
private – whether to include private properties, i.e., those starting with “_”. By default, this is False

Returns:

a list of class attributes

classmethod default()#

Returns the default config instance.

By default, this method instantiates the class from an empty dictionary, which will only succeed if all attributes are optional. Otherwise, subclasses should override this method to provide the desired default configuration.

classmethod from_dict(d)#

Constructs a BaseRunConfig from a serialized JSON dict representation of it.

Parameters:: d – a JSON dict
Returns:: a BaseRunConfig

classmethod from_json(path, *args, **kwargs)#

Constructs a Serializable object from a JSON file.

Subclasses may override this method, but, by default, this method simply reads the JSON and calls from_dict(), which subclasses must implement.

Parameters:

path – the path to the JSON file on disk
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns:

an instance of the Serializable class

classmethod from_kwargs(**kwargs)#

Constructs a Config object from keyword arguments.

Parameters:: **kwargs – keyword arguments that define the fields expected by cls
Returns:: an instance of cls

classmethod from_str(s, *args, **kwargs)#

Constructs a Serializable object from a JSON string.

Subclasses may override this method, but, by default, this method simply parses the string and calls from_dict(), which subclasses must implement.

Parameters:

s – a JSON string representation of a Serializable object
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns:

an instance of the Serializable class

classmethod get_class_name()#: Returns the fully-qualified class name string of this object.

load_credentials(**kwargs)#

Loads any necessary credentials from the given keyword arguments or the relevant FiftyOne config.

Parameters:: **kwargs – subclass-specific credentials

classmethod load_default()#

Loads the default config instance from file.

Subclasses must implement this method if they intend to support default instances.

property method#: The name of the method.

static parse_array(d, key, default=<eta.core.config.NoDefault object>)#

Parses a raw array attribute.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default list to return if key is not present

Returns:

a list of raw (untouched) values

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_bool(d, key, default=<eta.core.config.NoDefault object>)#

Parses a boolean value.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default bool to return if key is not present

Returns:

True/False

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_categorical(d, key, choices, default=<eta.core.config.NoDefault object>)#

Parses a categorical JSON field, which must take a value from among the given choices.

Parameters:

d – a JSON dictionary
key – the key to parse
choices – either an iterable of possible values or an enum-like class whose attributes define the possible values
default – a default value to return if key is not present

Returns:

the raw (untouched) value of the given field, which is equal to a value from choices

Raises:

ConfigError – if the key was present in the dictionary but its value was not an allowed choice, or if no default value was provided and the key was not found in the dictionary

static parse_dict(d, key, default=<eta.core.config.NoDefault object>)#

Parses a dictionary attribute.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default dict to return if key is not present

Returns:

a dictionary

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_int(d, key, default=<eta.core.config.NoDefault object>)#

Parses an integer attribute.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default integer value to return if key is not present

Returns:

an int

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_mutually_exclusive_fields(fields)#

Parses a mutually exclusive dictionary of pre-parsed fields, which must contain exactly one field with a truthy value.

Parameters:: fields – a dictionary of pre-parsed fields
Returns:: the (field, value) that was set
Raises:: ConfigError – if zero or more than one truthy value was found

static parse_number(d, key, default=<eta.core.config.NoDefault object>)#

Parses a number attribute.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default numeric value to return if key is not present

Returns:

a number (e.g. int, float)

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_object(d, key, cls, default=<eta.core.config.NoDefault object>)#

Parses an object attribute.

The value of d[key] can be either an instance of cls or a serialized dict from an instance of cls.

Parameters:

d – a JSON dictionary
key – the key to parse
cls – the class of d[key]
default – a default cls instance to return if key is not present

Returns:

an instance of cls

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_object_array(d, key, cls, default=<eta.core.config.NoDefault object>)#

Parses an array of objects.

The values in d[key] can be either instances of cls or serialized dicts from instances of cls.

Parameters:

d – a JSON dictionary
key – the key to parse
cls – the class of the elements of list d[key]
default – the default list to return if key is not present

Returns:

a list of cls instances

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_object_dict(d, key, cls, default=<eta.core.config.NoDefault object>)#

Parses a dictionary whose values are objects.

The values in d[key] can be either instances of cls or serialized dicts from instances of cls.

Parameters:

d – a JSON dictionary
key – the key to parse
cls – the class of the values of dictionary d[key]
default – the default dict of cls instances to return if key is not present

Returns:

a dictionary whose values are cls instances

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_path(d, key, default=<eta.core.config.NoDefault object>)#

Parses a path attribute.

The path is converted to an absolute path if necessary via os.path.abspath(os.path.expanduser(value)).

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default string to return if key is not present

Returns:

a path string

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_raw(d, key, default=<eta.core.config.NoDefault object>)#

Parses a raw (arbitrary) JSON field.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default value to return if key is not present

Returns:

the raw (untouched) value of the given field

Raises:

ConfigError – if no default value was provided and the key was not found in the dictionary

static parse_string(d, key, default=<eta.core.config.NoDefault object>)#

Parses a string attribute.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default string to return if key is not present

Returns:

a string

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

property run_cls#: The BaseRun class associated with this config.

serialize(reflective=False)#

Serializes the object into a dictionary.

Serialization is applied recursively to all attributes in the object, including element-wise serialization of lists and dictionary values.

Parameters:: reflective – whether to include reflective attributes when serializing the object. By default, this is False
Returns:: a JSON dictionary representation of the object

to_str(pretty_print=True, **kwargs)#

Returns a string representation of this object.

Parameters:

pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is True
**kwargs – optional keyword arguments for self.serialize()

Returns:

a string representation of the object

static validate_all_or_nothing_fields(fields)#

Validates a dictionary of pre-parsed fields checking that either all or none of the fields have a truthy value.

Parameters:: fields – a dictionary of pre-parsed fields
Raises:: ConfigError – if some values are truth and some are not

write_json(path, pretty_print=False, **kwargs)#

Serializes the object and writes it to disk.

Parameters:

path – the output path
pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is False
**kwargs – optional keyword arguments for self.serialize()

class fiftyone.utils.eval.regression.RegressionEvaluation(config)#

Bases: BaseEvaluationMethod

Base class for regression evaluation methods.

Parameters:: config – a RegressionEvaluationConfig

Methods:

`register_samples`(samples, eval_key)	Registers the collection on which evaluation will be performed.
`evaluate_samples`(samples[, eval_key, ...])	Evaluates the regression predictions in the given samples with respect to the specified ground truth values.
`get_fields`(samples, eval_key[, ...])	Gets the fields that were involved in the given run.
`rename`(samples, eval_key, new_eval_key)	Performs any necessary operations required to rename this run's key.
`cleanup`(samples, eval_key)	Cleans up the results of the run with the given key from the collection.
`add_fields_to_sidebar_group`(samples, eval_key)
`cleanup_custom_metrics`(samples, eval_key[, ...])
`compute_custom_metrics`(samples, eval_key, ...)
`delete_run`(samples, key[, cleanup])	Deletes the results associated with the given run key from the collection.
`delete_runs`(samples[, cleanup])	Deletes all runs from the collection.
`ensure_requirements`()	Ensures that any necessary packages to execute this run are installed.
`ensure_usage_requirements`()	Ensures that any necessary packages to use existing results for this run are installed.
`from_config`(config)	Instantiates a Configurable class from a <cls>Config instance.
`from_dict`(d)	Instantiates a Configurable class from a <cls>Config dict.
`from_json`(json_path)	Instantiates a Configurable class from a <cls>Config JSON file.
`from_kwargs`(**kwargs)	Instantiates a Configurable class from keyword arguments defining the attributes of a <cls>Config.
`get_custom_metric_fields`(samples, eval_key)
`get_run_info`(samples, key)	Gets the `BaseRunInfo` for the given key on the collection.
`has_cached_run_results`(samples, key)	Determines whether `BaseRunResults` for the given key are cached on the collection.
`list_runs`(samples[, type, method])	Returns the list of run keys on the given collection.
`load_run_results`(samples, key[, cache, ...])	Loads the `BaseRunResults` for the given key on the collection.
`load_run_view`(samples, key[, select_fields])	Loads the view on which the specified run was performed.
`parse`(class_name[, module_name])	Parses a Configurable subclass name string.
`register_run`(samples, key[, overwrite, cleanup])	Registers a run of this method under the given key on the given collection.
`rename_custom_metrics`(samples, eval_key, ...)
`run_info_cls`()	The `BaseRunInfo` class associated with this class.
`save_run_info`(samples, run_info[, ...])	Saves the run information on the collection.
`save_run_results`(samples, key, run_results)	Saves the run results on the collection.
`update_run_config`(samples, key, config)	Updates the `BaseRunConfig` for the given run on the collection.
`update_run_key`(samples, key, new_key)	Replaces the key for the given run with a new key.
`validate`(config)	Validates that the given config is an instance of <cls>Config.
`validate_run`(samples, key[, overwrite])	Validates that the collection can accept this run.

register_samples(samples, eval_key)#

Registers the collection on which evaluation will be performed.

This method will be called before calling evaluate_samples(). Subclasses can extend this method to perform any setup required for an evaluation run.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
eval_key – the evaluation key for this evaluation

evaluate_samples(samples, eval_key=None, missing=None, progress=None)#

Evaluates the regression predictions in the given samples with respect to the specified ground truth values.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
eval_key (None) – an evaluation key for this evaluation
missing (None) – a missing value. Any None-valued regressions are given this value for results purposes
progress (None) – whether to render a progress bar (True/False), use the default value fiftyone.config.show_progress_bars (None), or a progress callback function to invoke instead

Returns:

a RegressionResults instance

get_fields(samples, eval_key, include_custom_metrics=True)#

Gets the fields that were involved in the given run.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key

Returns:

a list of fields

rename(samples, eval_key, new_eval_key)#

Performs any necessary operations required to rename this run’s key.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
new_key – a new run key

cleanup(samples, eval_key)#

Cleans up the results of the run with the given key from the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key

add_fields_to_sidebar_group(samples, eval_key, omit_fields=None)#

cleanup_custom_metrics(samples, eval_key, metric_uris=None)#

compute_custom_metrics(samples, eval_key, results, metric_uris=None)#

classmethod delete_run(samples, key, cleanup=True)#

Deletes the results associated with the given run key from the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
cleanup (True) – whether to execute the run’s BaseRun.cleanup() method

classmethod delete_runs(samples, cleanup=True)#

Deletes all runs from the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
cleanup (True) – whether to execute the run’s BaseRun.cleanup() methods

ensure_requirements()#

Ensures that any necessary packages to execute this run are installed.

Runs should respect fiftyone.config.requirement_error_level when handling errors.

ensure_usage_requirements()#

Ensures that any necessary packages to use existing results for this run are installed.

Runs should respect fiftyone.config.requirement_error_level when handling errors.

classmethod from_config(config)#: Instantiates a Configurable class from a <cls>Config instance.

classmethod from_dict(d)#

Instantiates a Configurable class from a <cls>Config dict.

Parameters:: d – a dict to construct a <cls>Config
Returns:: an instance of cls

classmethod from_json(json_path)#

Instantiates a Configurable class from a <cls>Config JSON file.

Parameters:: json_path – path to a JSON file for type <cls>Config
Returns:: an instance of cls

classmethod from_kwargs(**kwargs)#

Instantiates a Configurable class from keyword arguments defining the attributes of a <cls>Config.

Parameters:: **kwargs – keyword arguments that define the fields of a <cls>Config dict
Returns:: an instance of cls

get_custom_metric_fields(samples, eval_key, metric_uris=None)#

classmethod get_run_info(samples, key)#

Gets the BaseRunInfo for the given key on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key

Returns:

a BaseRunInfo

classmethod has_cached_run_results(samples, key)#

Determines whether BaseRunResults for the given key are cached on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key

Returns:

True/False

classmethod list_runs(samples, type=None, method=None, **kwargs)#

Returns the list of run keys on the given collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
type (None) –
a specific run type to match, which can be:
- a string fiftyone.core.runs.BaseRunConfig.type
- a fiftyone.core.runs.BaseRun class or its fully-qualified class name string
method (None) – a specific fiftyone.core.runs.BaseRunConfig.method string to match
**kwargs – optional config parameters to match

Returns:

a list of run keys

classmethod load_run_results(samples, key, cache=True, load_view=True, **kwargs)#

Loads the BaseRunResults for the given key on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
cache (True) – whether to cache the results on the collection
load_view (True) – whether to load the run view in the results (True) or the full dataset (False)
**kwargs – keyword arguments for the run’s BaseRunConfig.load_credentials() method

Returns:

a BaseRunResults, or None if the run did not save results

classmethod load_run_view(samples, key, select_fields=False)#

Loads the view on which the specified run was performed.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
select_fields (False) – whether to exclude fields involved in other runs of the same type

Returns:

a fiftyone.core.collections.SampleCollection

static parse(class_name, module_name=None)#

Parses a Configurable subclass name string.

Assumes both the Configurable class and the Config class are defined in the same module. The module containing the classes will be loaded if necessary.

Parameters:

class_name – a string containing the name of the Configurable class, e.g. “ClassName”, or a fully-qualified class name, e.g. “eta.core.config.ClassName”
module_name – a string containing the fully-qualified module name, e.g. “eta.core.config”, or None if class_name includes the module name. Set module_name = __name__ to load a class from the calling module

Returns:

the Configurable class config_cls: the Config class associated with cls

Return type:

cls

register_run(samples, key, overwrite=True, cleanup=True)#

Registers a run of this method under the given key on the given collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
overwrite (True) – whether to allow overwriting an existing run of the same type
cleanup (True) – whether to execute an existing run’s BaseRun.cleanup() method when overwriting it

rename_custom_metrics(samples, eval_key, new_eval_key, metric_uris=None)#

classmethod run_info_cls()#: The BaseRunInfo class associated with this class.

classmethod save_run_info(samples, run_info, overwrite=True, cleanup=True)#

Saves the run information on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
run_info – a BaseRunInfo
overwrite (True) – whether to overwrite an existing run with the same key
cleanup (True) – whether to execute an existing run’s BaseRun.cleanup() method when overwriting it

classmethod save_run_results(samples, key, run_results, overwrite=True, cache=True)#

Saves the run results on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
run_results – a BaseRunResults, or None
overwrite (True) – whether to overwrite an existing result with the same key
cache (True) – whether to cache the results on the collection

classmethod update_run_config(samples, key, config)#

Updates the BaseRunConfig for the given run on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
config – a BaseRunConfig

classmethod update_run_key(samples, key, new_key)#

Replaces the key for the given run with a new key.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
new_key – a new run key

classmethod validate(config)#

Validates that the given config is an instance of <cls>Config.

Raises:: ConfigurableError – if config is not an instance of <cls>Config

validate_run(samples, key, overwrite=True)#

Validates that the collection can accept this run.

The run may be invalid if, for example, a run of a different type has already been run under the same key and thus overwriting it would cause ambiguity on how to cleanup the results.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
overwrite (True) – whether to allow overwriting an existing run of the same type

Raises:

ValueError – if the run is invalid

class fiftyone.utils.eval.regression.SimpleEvaluationConfig(pred_field, gt_field, metric='squared_error', custom_metrics=None, **kwargs)#

Bases: RegressionEvaluationConfig

Base class for configuring SimpleEvaluation instances.

Parameters:

pred_field – the name of the field containing the predicted fiftyone.core.labels.Regression instances
gt_field – the name of the field containing the ground truth fiftyone.core.labels.Regression instances
metric ("squared_error") – the error metric to use to populate sample/frame-level error data. Supported values are ("squared_error", "absolute_error") or any function that accepts two scalar arguments (ypred, ytrue)
custom_metrics (None) – an optional list of custom metrics to compute or dict mapping metric names to kwargs dicts

Attributes:

`method`	The name of the method.
`metric`
`cls`	The fully-qualified name of this `BaseRunConfig` class.
`run_cls`	The `BaseRun` class associated with this config.
`type`	The type of run.

Methods:

`attributes`()	Returns the list of class attributes that will be serialized by `serialize()`.
`base_config_cls`(type)	Returns the config class for the given run type.
`build`()	Builds the `BaseRun` instance associated with this config.
`builder`()	Returns a ConfigBuilder instance for this class.
`copy`()	Returns a deep copy of the object.
`custom_attributes`([dynamic, private])	Returns a customizable list of class attributes.
`default`()	Returns the default config instance.
`from_dict`(d)	Constructs a `BaseRunConfig` from a serialized JSON dict representation of it.
`from_json`(path, args, *kwargs)	Constructs a Serializable object from a JSON file.
`from_kwargs`(**kwargs)	Constructs a Config object from keyword arguments.
`from_str`(s, args, *kwargs)	Constructs a Serializable object from a JSON string.
`get_class_name`()	Returns the fully-qualified class name string of this object.
`load_credentials`(**kwargs)	Loads any necessary credentials from the given keyword arguments or the relevant FiftyOne config.
`load_default`()	Loads the default config instance from file.
`parse_array`(d, key[, default])	Parses a raw array attribute.
`parse_bool`(d, key[, default])	Parses a boolean value.
`parse_categorical`(d, key, choices[, default])	Parses a categorical JSON field, which must take a value from among the given choices.
`parse_dict`(d, key[, default])	Parses a dictionary attribute.
`parse_int`(d, key[, default])	Parses an integer attribute.
`parse_mutually_exclusive_fields`(fields)	Parses a mutually exclusive dictionary of pre-parsed fields, which must contain exactly one field with a truthy value.
`parse_number`(d, key[, default])	Parses a number attribute.
`parse_object`(d, key, cls[, default])	Parses an object attribute.
`parse_object_array`(d, key, cls[, default])	Parses an array of objects.
`parse_object_dict`(d, key, cls[, default])	Parses a dictionary whose values are objects.
`parse_path`(d, key[, default])	Parses a path attribute.
`parse_raw`(d, key[, default])	Parses a raw (arbitrary) JSON field.
`parse_string`(d, key[, default])	Parses a string attribute.
`serialize`([reflective])	Serializes the object into a dictionary.
`to_str`([pretty_print])	Returns a string representation of this object.
`validate_all_or_nothing_fields`(fields)	Validates a dictionary of pre-parsed fields checking that either all or none of the fields have a truthy value.
`write_json`(path[, pretty_print])	Serializes the object and writes it to disk.

property method#: The name of the method.

property metric#

attributes()#

Returns the list of class attributes that will be serialized by serialize().

Returns:: a list of attributes

static base_config_cls(type)#

Returns the config class for the given run type.

Parameters:: type – a BaseRunConfig.type
Returns:: a BaseRunConfig subclass

build()#

Builds the BaseRun instance associated with this config.

Returns:: a BaseRun instance

classmethod builder()#: Returns a ConfigBuilder instance for this class.

property cls#: The fully-qualified name of this BaseRunConfig class.

copy()#

Returns a deep copy of the object.

Returns:: a Serializable instance

custom_attributes(dynamic=False, private=False)#

Returns a customizable list of class attributes.

By default, all attributes in vars(self) are returned, minus private attributes (those starting with “_”).

Parameters:

dynamic – whether to include dynamic properties, e.g., those defined by getter/setter methods or the @property decorator. By default, this is False
private – whether to include private properties, i.e., those starting with “_”. By default, this is False

Returns:

a list of class attributes

classmethod default()#

Returns the default config instance.

By default, this method instantiates the class from an empty dictionary, which will only succeed if all attributes are optional. Otherwise, subclasses should override this method to provide the desired default configuration.

classmethod from_dict(d)#

Constructs a BaseRunConfig from a serialized JSON dict representation of it.

Parameters:: d – a JSON dict
Returns:: a BaseRunConfig

classmethod from_json(path, *args, **kwargs)#

Constructs a Serializable object from a JSON file.

Subclasses may override this method, but, by default, this method simply reads the JSON and calls from_dict(), which subclasses must implement.

Parameters:

path – the path to the JSON file on disk
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns:

an instance of the Serializable class

classmethod from_kwargs(**kwargs)#

Constructs a Config object from keyword arguments.

Parameters:: **kwargs – keyword arguments that define the fields expected by cls
Returns:: an instance of cls

classmethod from_str(s, *args, **kwargs)#

Constructs a Serializable object from a JSON string.

Subclasses may override this method, but, by default, this method simply parses the string and calls from_dict(), which subclasses must implement.

Parameters:

s – a JSON string representation of a Serializable object
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns:

an instance of the Serializable class

classmethod get_class_name()#: Returns the fully-qualified class name string of this object.

load_credentials(**kwargs)#

Loads any necessary credentials from the given keyword arguments or the relevant FiftyOne config.

Parameters:: **kwargs – subclass-specific credentials

classmethod load_default()#

Loads the default config instance from file.

Subclasses must implement this method if they intend to support default instances.

static parse_array(d, key, default=<eta.core.config.NoDefault object>)#

Parses a raw array attribute.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default list to return if key is not present

Returns:

a list of raw (untouched) values

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_bool(d, key, default=<eta.core.config.NoDefault object>)#

Parses a boolean value.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default bool to return if key is not present

Returns:

True/False

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_categorical(d, key, choices, default=<eta.core.config.NoDefault object>)#

Parses a categorical JSON field, which must take a value from among the given choices.

Parameters:

d – a JSON dictionary
key – the key to parse
choices – either an iterable of possible values or an enum-like class whose attributes define the possible values
default – a default value to return if key is not present

Returns:

the raw (untouched) value of the given field, which is equal to a value from choices

Raises:

ConfigError – if the key was present in the dictionary but its value was not an allowed choice, or if no default value was provided and the key was not found in the dictionary

static parse_dict(d, key, default=<eta.core.config.NoDefault object>)#

Parses a dictionary attribute.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default dict to return if key is not present

Returns:

a dictionary

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_int(d, key, default=<eta.core.config.NoDefault object>)#

Parses an integer attribute.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default integer value to return if key is not present

Returns:

an int

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_mutually_exclusive_fields(fields)#

Parses a mutually exclusive dictionary of pre-parsed fields, which must contain exactly one field with a truthy value.

Parameters:: fields – a dictionary of pre-parsed fields
Returns:: the (field, value) that was set
Raises:: ConfigError – if zero or more than one truthy value was found

static parse_number(d, key, default=<eta.core.config.NoDefault object>)#

Parses a number attribute.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default numeric value to return if key is not present

Returns:

a number (e.g. int, float)

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_object(d, key, cls, default=<eta.core.config.NoDefault object>)#

Parses an object attribute.

The value of d[key] can be either an instance of cls or a serialized dict from an instance of cls.

Parameters:

d – a JSON dictionary
key – the key to parse
cls – the class of d[key]
default – a default cls instance to return if key is not present

Returns:

an instance of cls

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_object_array(d, key, cls, default=<eta.core.config.NoDefault object>)#

Parses an array of objects.

The values in d[key] can be either instances of cls or serialized dicts from instances of cls.

Parameters:

d – a JSON dictionary
key – the key to parse
cls – the class of the elements of list d[key]
default – the default list to return if key is not present

Returns:

a list of cls instances

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_object_dict(d, key, cls, default=<eta.core.config.NoDefault object>)#

Parses a dictionary whose values are objects.

The values in d[key] can be either instances of cls or serialized dicts from instances of cls.

Parameters:

d – a JSON dictionary
key – the key to parse
cls – the class of the values of dictionary d[key]
default – the default dict of cls instances to return if key is not present

Returns:

a dictionary whose values are cls instances

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_path(d, key, default=<eta.core.config.NoDefault object>)#

Parses a path attribute.

The path is converted to an absolute path if necessary via os.path.abspath(os.path.expanduser(value)).

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default string to return if key is not present

Returns:

a path string

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

static parse_raw(d, key, default=<eta.core.config.NoDefault object>)#

Parses a raw (arbitrary) JSON field.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default value to return if key is not present

Returns:

the raw (untouched) value of the given field

Raises:

ConfigError – if no default value was provided and the key was not found in the dictionary

static parse_string(d, key, default=<eta.core.config.NoDefault object>)#

Parses a string attribute.

Parameters:

d – a JSON dictionary
key – the key to parse
default – a default string to return if key is not present

Returns:

a string

Raises:

ConfigError – if the field value was the wrong type or no default value was provided and the key was not found in the dictionary

property run_cls#: The BaseRun class associated with this config.

serialize(reflective=False)#

Serializes the object into a dictionary.

Serialization is applied recursively to all attributes in the object, including element-wise serialization of lists and dictionary values.

Parameters:: reflective – whether to include reflective attributes when serializing the object. By default, this is False
Returns:: a JSON dictionary representation of the object

to_str(pretty_print=True, **kwargs)#

Returns a string representation of this object.

Parameters:

pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is True
**kwargs – optional keyword arguments for self.serialize()

Returns:

a string representation of the object

property type#: The type of run.

static validate_all_or_nothing_fields(fields)#

Validates a dictionary of pre-parsed fields checking that either all or none of the fields have a truthy value.

Parameters:: fields – a dictionary of pre-parsed fields
Raises:: ConfigError – if some values are truth and some are not

write_json(path, pretty_print=False, **kwargs)#

Serializes the object and writes it to disk.

Parameters:

path – the output path
pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is False
**kwargs – optional keyword arguments for self.serialize()

class fiftyone.utils.eval.regression.SimpleEvaluation(config)#

Bases: RegressionEvaluation

Simple regression evaluation.

Parameters:: config – a SimpleEvaluationConfig

Methods:

`evaluate_samples`(samples[, eval_key, ...])	Evaluates the regression predictions in the given samples with respect to the specified ground truth values.
`add_fields_to_sidebar_group`(samples, eval_key)
`cleanup`(samples, eval_key)	Cleans up the results of the run with the given key from the collection.
`cleanup_custom_metrics`(samples, eval_key[, ...])
`compute_custom_metrics`(samples, eval_key, ...)
`delete_run`(samples, key[, cleanup])	Deletes the results associated with the given run key from the collection.
`delete_runs`(samples[, cleanup])	Deletes all runs from the collection.
`ensure_requirements`()	Ensures that any necessary packages to execute this run are installed.
`ensure_usage_requirements`()	Ensures that any necessary packages to use existing results for this run are installed.
`from_config`(config)	Instantiates a Configurable class from a <cls>Config instance.
`from_dict`(d)	Instantiates a Configurable class from a <cls>Config dict.
`from_json`(json_path)	Instantiates a Configurable class from a <cls>Config JSON file.
`from_kwargs`(**kwargs)	Instantiates a Configurable class from keyword arguments defining the attributes of a <cls>Config.
`get_custom_metric_fields`(samples, eval_key)
`get_fields`(samples, eval_key[, ...])	Gets the fields that were involved in the given run.
`get_run_info`(samples, key)	Gets the `BaseRunInfo` for the given key on the collection.
`has_cached_run_results`(samples, key)	Determines whether `BaseRunResults` for the given key are cached on the collection.
`list_runs`(samples[, type, method])	Returns the list of run keys on the given collection.
`load_run_results`(samples, key[, cache, ...])	Loads the `BaseRunResults` for the given key on the collection.
`load_run_view`(samples, key[, select_fields])	Loads the view on which the specified run was performed.
`parse`(class_name[, module_name])	Parses a Configurable subclass name string.
`register_run`(samples, key[, overwrite, cleanup])	Registers a run of this method under the given key on the given collection.
`register_samples`(samples, eval_key)	Registers the collection on which evaluation will be performed.
`rename`(samples, eval_key, new_eval_key)	Performs any necessary operations required to rename this run's key.
`rename_custom_metrics`(samples, eval_key, ...)
`run_info_cls`()	The `BaseRunInfo` class associated with this class.
`save_run_info`(samples, run_info[, ...])	Saves the run information on the collection.
`save_run_results`(samples, key, run_results)	Saves the run results on the collection.
`update_run_config`(samples, key, config)	Updates the `BaseRunConfig` for the given run on the collection.
`update_run_key`(samples, key, new_key)	Replaces the key for the given run with a new key.
`validate`(config)	Validates that the given config is an instance of <cls>Config.
`validate_run`(samples, key[, overwrite])	Validates that the collection can accept this run.

evaluate_samples(samples, eval_key=None, missing=None, progress=None)#

Evaluates the regression predictions in the given samples with respect to the specified ground truth values.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
eval_key (None) – an evaluation key for this evaluation
missing (None) – a missing value. Any None-valued regressions are given this value for results purposes
progress (None) – whether to render a progress bar (True/False), use the default value fiftyone.config.show_progress_bars (None), or a progress callback function to invoke instead

Returns:

a RegressionResults instance

add_fields_to_sidebar_group(samples, eval_key, omit_fields=None)#

cleanup(samples, eval_key)#

Cleans up the results of the run with the given key from the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key

cleanup_custom_metrics(samples, eval_key, metric_uris=None)#

compute_custom_metrics(samples, eval_key, results, metric_uris=None)#

classmethod delete_run(samples, key, cleanup=True)#

Deletes the results associated with the given run key from the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
cleanup (True) – whether to execute the run’s BaseRun.cleanup() method

classmethod delete_runs(samples, cleanup=True)#

Deletes all runs from the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
cleanup (True) – whether to execute the run’s BaseRun.cleanup() methods

ensure_requirements()#

Ensures that any necessary packages to execute this run are installed.

Runs should respect fiftyone.config.requirement_error_level when handling errors.

ensure_usage_requirements()#

Ensures that any necessary packages to use existing results for this run are installed.

Runs should respect fiftyone.config.requirement_error_level when handling errors.

classmethod from_config(config)#: Instantiates a Configurable class from a <cls>Config instance.

classmethod from_dict(d)#

Instantiates a Configurable class from a <cls>Config dict.

Parameters:: d – a dict to construct a <cls>Config
Returns:: an instance of cls

classmethod from_json(json_path)#

Instantiates a Configurable class from a <cls>Config JSON file.

Parameters:: json_path – path to a JSON file for type <cls>Config
Returns:: an instance of cls

classmethod from_kwargs(**kwargs)#

Instantiates a Configurable class from keyword arguments defining the attributes of a <cls>Config.

Parameters:: **kwargs – keyword arguments that define the fields of a <cls>Config dict
Returns:: an instance of cls

get_custom_metric_fields(samples, eval_key, metric_uris=None)#

get_fields(samples, eval_key, include_custom_metrics=True)#

Gets the fields that were involved in the given run.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key

Returns:

a list of fields

classmethod get_run_info(samples, key)#

Gets the BaseRunInfo for the given key on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key

Returns:

a BaseRunInfo

classmethod has_cached_run_results(samples, key)#

Determines whether BaseRunResults for the given key are cached on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key

Returns:

True/False

classmethod list_runs(samples, type=None, method=None, **kwargs)#

Returns the list of run keys on the given collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
type (None) –
a specific run type to match, which can be:
- a string fiftyone.core.runs.BaseRunConfig.type
- a fiftyone.core.runs.BaseRun class or its fully-qualified class name string
method (None) – a specific fiftyone.core.runs.BaseRunConfig.method string to match
**kwargs – optional config parameters to match

Returns:

a list of run keys

classmethod load_run_results(samples, key, cache=True, load_view=True, **kwargs)#

Loads the BaseRunResults for the given key on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
cache (True) – whether to cache the results on the collection
load_view (True) – whether to load the run view in the results (True) or the full dataset (False)
**kwargs – keyword arguments for the run’s BaseRunConfig.load_credentials() method

Returns:

a BaseRunResults, or None if the run did not save results

classmethod load_run_view(samples, key, select_fields=False)#

Loads the view on which the specified run was performed.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
select_fields (False) – whether to exclude fields involved in other runs of the same type

Returns:

a fiftyone.core.collections.SampleCollection

static parse(class_name, module_name=None)#

Parses a Configurable subclass name string.

Assumes both the Configurable class and the Config class are defined in the same module. The module containing the classes will be loaded if necessary.

Parameters:

class_name – a string containing the name of the Configurable class, e.g. “ClassName”, or a fully-qualified class name, e.g. “eta.core.config.ClassName”
module_name – a string containing the fully-qualified module name, e.g. “eta.core.config”, or None if class_name includes the module name. Set module_name = __name__ to load a class from the calling module

Returns:

the Configurable class config_cls: the Config class associated with cls

Return type:

cls

register_run(samples, key, overwrite=True, cleanup=True)#

Registers a run of this method under the given key on the given collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
overwrite (True) – whether to allow overwriting an existing run of the same type
cleanup (True) – whether to execute an existing run’s BaseRun.cleanup() method when overwriting it

register_samples(samples, eval_key)#

Registers the collection on which evaluation will be performed.

This method will be called before calling evaluate_samples(). Subclasses can extend this method to perform any setup required for an evaluation run.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
eval_key – the evaluation key for this evaluation

rename(samples, eval_key, new_eval_key)#

Performs any necessary operations required to rename this run’s key.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
new_key – a new run key

rename_custom_metrics(samples, eval_key, new_eval_key, metric_uris=None)#

classmethod run_info_cls()#: The BaseRunInfo class associated with this class.

classmethod save_run_info(samples, run_info, overwrite=True, cleanup=True)#

Saves the run information on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
run_info – a BaseRunInfo
overwrite (True) – whether to overwrite an existing run with the same key
cleanup (True) – whether to execute an existing run’s BaseRun.cleanup() method when overwriting it

classmethod save_run_results(samples, key, run_results, overwrite=True, cache=True)#

Saves the run results on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
run_results – a BaseRunResults, or None
overwrite (True) – whether to overwrite an existing result with the same key
cache (True) – whether to cache the results on the collection

classmethod update_run_config(samples, key, config)#

Updates the BaseRunConfig for the given run on the collection.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
config – a BaseRunConfig

classmethod update_run_key(samples, key, new_key)#

Replaces the key for the given run with a new key.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
new_key – a new run key

classmethod validate(config)#

Validates that the given config is an instance of <cls>Config.

Raises:: ConfigurableError – if config is not an instance of <cls>Config

validate_run(samples, key, overwrite=True)#

Validates that the collection can accept this run.

The run may be invalid if, for example, a run of a different type has already been run under the same key and thus overwriting it would cause ambiguity on how to cleanup the results.

Parameters:

samples – a fiftyone.core.collections.SampleCollection
key – a run key
overwrite (True) – whether to allow overwriting an existing run of the same type

Raises:

ValueError – if the run is invalid

class fiftyone.utils.eval.regression.RegressionResults(samples, config, eval_key, ytrue, ypred, confs=None, ids=None, missing=None, custom_metrics=None, backend=None)#

Bases: BaseEvaluationResults

Class that stores the results of a regression evaluation.

Parameters:

samples – the fiftyone.core.collections.SampleCollection used
config – the RegressionEvaluationConfig used
eval_key (None) – the evaluation key
ytrue – a list of ground truth values
ypred – a list of predicted values
confs (None) – an optional list of confidences for the predictions
eval_key – the evaluation key of the evaluation
gt_field (None) – the name of the ground truth field
pred_field (None) – the name of the predictions field
ids (None) – a list of sample or frame IDs corresponding to the regressions
missing (None) – a missing value. Any None-valued regressions are given this value for results purposes
custom_metrics (None) – an optional dict of custom metrics
backend (None) – a RegressionEvaluation backend

Methods:

`metrics`([weights])	Computes various popular regression metrics for the results.
`print_metrics`([weights, digits])	Prints the metrics computed via `metrics()`.
`plot_results`([labels, sizes, backend])	Plots the regression results.
`add_custom_metrics`(custom_metrics[, overwrite])	Computes the given custom metrics and adds them to these results.
`attributes`()	Returns the list of class attributes that will be serialized by `serialize()`.
`base_results_cls`(type)	Returns the results class for the given run type.
`copy`()	Returns a deep copy of the object.
`custom_attributes`([dynamic, private])	Returns a customizable list of class attributes.
`from_dict`(d, samples, config, key)	Builds a `BaseRunResults` from a JSON dict representation of it.
`from_json`(path, args, *kwargs)	Constructs a Serializable object from a JSON file.
`from_str`(s, args, *kwargs)	Constructs a Serializable object from a JSON string.
`get_class_name`()	Returns the fully-qualified class name string of this object.
`save`()	Saves the results to the database.
`save_config`()	Saves these results config to the database.
`serialize`([reflective])	Serializes the object into a dictionary.
`to_str`([pretty_print])	Returns a string representation of this object.
`write_json`(path[, pretty_print])	Serializes the object and writes it to disk.

Attributes:

`backend`	The `BaseRun` for these results.
`cls`	The fully-qualified name of this `BaseRunResults` class.
`config`	The `BaseRunConfig` for these results.
`key`	The run key for these results.
`samples`	The `fiftyone.core.collections.SampleCollection` associated with these results.

metrics(weights=None)#

Computes various popular regression metrics for the results.

The computed metrics are:

Mean squared error: sklearn.metrics.mean_squared_error()
Root mean squared error: sklearn.metrics.mean_squared_error()
Mean absolute error: sklearn.metrics.mean_absolute_error()
Median absolute error: sklearn.metrics.median_absolute_error()
R^2 score: sklearn.metrics.r2_score()
Explained variance score: sklearn.metrics.explained_variance_score()
Max error: sklearn.metrics.max_error()
Support: the number of examples

Also includes any custom metrics from custom_metrics.

Parameters:: weights (None) – an optional list of weights for each example
Returns:: a dict

print_metrics(weights=None, digits=2)#

Prints the metrics computed via metrics().

Parameters:

weights (None) – an optional list of weights for each example
digits (2) – the number of digits of precision to print

plot_results(labels=None, sizes=None, backend='plotly', **kwargs)#

Plots the regression results.

You can use the labels parameters to define a coloring for the points, and you can use the sizes parameter to scale the sizes of the points.

You can attach plots generated by this method to an App session via its fiftyone.core.session.Session.plots attribute, which will automatically sync the session’s view with the currently selected points in the plot.

Parameters:

labels (None) –
data to use to color the points. Can be any of the following:
- the name of a sample field or embedded.field.name of from which to extract numeric or string values
- a fiftyone.core.expressions.ViewExpression defining numeric or string values to extract via fiftyone.core.collections.SampleCollection.values()
- a list or array-like of numeric or string values (or lists of lists for frame-level regressions)
sizes (None) –
data to use to scale the sizes of the points. Can be any of the following:
- the name of a sample field or embedded.field.name from which to extract numeric values
- a fiftyone.core.expressions.ViewExpression defining numeric values to extract via fiftyone.core.collections.SampleCollection.values()
- a list or array-like of numeric values (or lists of lists for frame-level regressions)
backend ("plotly") – the plotting backend to use. Supported values are ("plotly", "matplotlib")
**kwargs –
keyword arguments for the backend plotting method:
- ”plotly” backend: fiftyone.core.plots.plotly.plot_regressions()
- ”matplotlib” backend: fiftyone.core.plots.matplotlib.plot_regressions()

Returns:

an fiftyone.core.plots.base.InteractivePlot

add_custom_metrics(custom_metrics, overwrite=True)#

Computes the given custom metrics and adds them to these results.

Parameters:

custom_metrics – a list of custom metrics to compute or a dict mapping metric names to kwargs dicts
overwrite (True) – whether to recompute any custom metrics that have already been applied

attributes()#

Returns the list of class attributes that will be serialized by serialize().

Returns:: a list of attributes

property backend#: The BaseRun for these results.

static base_results_cls(type)#

Returns the results class for the given run type.

Parameters:: type – a BaseRunConfig.type
Returns:: a BaseRunResults subclass

property cls#: The fully-qualified name of this BaseRunResults class.

property config#: The BaseRunConfig for these results.

copy()#

Returns a deep copy of the object.

Returns:: a Serializable instance

custom_attributes(dynamic=False, private=False)#

Returns a customizable list of class attributes.

By default, all attributes in vars(self) are returned, minus private attributes (those starting with “_”).

Parameters:

dynamic – whether to include dynamic properties, e.g., those defined by getter/setter methods or the @property decorator. By default, this is False
private – whether to include private properties, i.e., those starting with “_”. By default, this is False

Returns:

a list of class attributes

classmethod from_dict(d, samples, config, key)#

Builds a BaseRunResults from a JSON dict representation of it.

Parameters:

d – a JSON dict
samples – the fiftyone.core.collections.SampleCollection for the run
config – the BaseRunConfig for the run
key – the run key

Returns:

a BaseRunResults

classmethod from_json(path, *args, **kwargs)#

Constructs a Serializable object from a JSON file.

Subclasses may override this method, but, by default, this method simply reads the JSON and calls from_dict(), which subclasses must implement.

Parameters:

path – the path to the JSON file on disk
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns:

an instance of the Serializable class

classmethod from_str(s, *args, **kwargs)#

Constructs a Serializable object from a JSON string.

Subclasses may override this method, but, by default, this method simply parses the string and calls from_dict(), which subclasses must implement.

Parameters:

s – a JSON string representation of a Serializable object
*args – optional positional arguments for self.from_dict()
**kwargs – optional keyword arguments for self.from_dict()

Returns:

an instance of the Serializable class

classmethod get_class_name()#: Returns the fully-qualified class name string of this object.

property key#: The run key for these results.

property samples#: The fiftyone.core.collections.SampleCollection associated with these results.

save()#: Saves the results to the database.

save_config()#: Saves these results config to the database.

serialize(reflective=False)#

Serializes the object into a dictionary.

Serialization is applied recursively to all attributes in the object, including element-wise serialization of lists and dictionary values.

Parameters:: reflective – whether to include reflective attributes when serializing the object. By default, this is False
Returns:: a JSON dictionary representation of the object

to_str(pretty_print=True, **kwargs)#

Returns a string representation of this object.

Parameters:

pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is True
**kwargs – optional keyword arguments for self.serialize()

Returns:

a string representation of the object

write_json(path, pretty_print=False, **kwargs)#

Serializes the object and writes it to disk.

Parameters:

path – the output path
pretty_print – whether to render the JSON in human readable format with newlines and indentations. By default, this is False
**kwargs – optional keyword arguments for self.serialize()