GeneralizedLinearRegressionModel¶

class pyspark.ml.regression.GeneralizedLinearRegressionModel(java_model=None)[source]¶

Model fitted by GeneralizedLinearRegression.

New in version 2.0.0.

Methods

`clear`(param)	Clears a param from the param map if it has been explicitly set.
`copy`([extra])	Creates a copy of this instance with the same uid and some extra params.
`evaluate`(dataset)	Evaluates the model on a test dataset.
`explainParam`(param)	Explains a single param and returns its name, doc, and optional default value and user-supplied value in a string.
`explainParams`()	Returns the documentation of all params with their optionally default values and user-supplied values.
`extractParamMap`([extra])	Extracts the embedded default param values and user-supplied values, and then merges them with extra values from input into a flat param map, where the latter value is used if there exist conflicts, i.e., with ordering: default param values < user-supplied values < extra.
`getAggregationDepth`()	Gets the value of aggregationDepth or its default value.
`getFamily`()	Gets the value of family or its default value.
`getFeaturesCol`()	Gets the value of featuresCol or its default value.
`getFitIntercept`()	Gets the value of fitIntercept or its default value.
`getLabelCol`()	Gets the value of labelCol or its default value.
`getLink`()	Gets the value of link or its default value.
`getLinkPower`()	Gets the value of linkPower or its default value.
`getLinkPredictionCol`()	Gets the value of linkPredictionCol or its default value.
`getMaxIter`()	Gets the value of maxIter or its default value.
`getOffsetCol`()	Gets the value of offsetCol or its default value.
`getOrDefault`(param)	Gets the value of a param in the user-supplied param map or its default value.
`getParam`(paramName)	Gets a param by its name.
`getPredictionCol`()	Gets the value of predictionCol or its default value.
`getRegParam`()	Gets the value of regParam or its default value.
`getSolver`()	Gets the value of solver or its default value.
`getTol`()	Gets the value of tol or its default value.
`getVariancePower`()	Gets the value of variancePower or its default value.
`getWeightCol`()	Gets the value of weightCol or its default value.
`hasDefault`(param)	Checks whether a param has a default value.
`hasParam`(paramName)	Tests whether this instance contains a param with a given (string) name.
`isDefined`(param)	Checks whether a param is explicitly set by user or has a default value.
`isSet`(param)	Checks whether a param is explicitly set by user.
`load`(path)	Reads an ML instance from the input path, a shortcut of read().load(path).
`predict`(value)	Predict label for the given features.
`read`()	Returns an MLReader instance for this class.
`save`(path)	Save this ML instance to the given path, a shortcut of ‘write().save(path)’.
`set`(param, value)	Sets a parameter in the embedded param map.
`setFeaturesCol`(value)	Sets the value of `featuresCol`.
`setLinkPredictionCol`(value)	Sets the value of `linkPredictionCol`.
`setPredictionCol`(value)	Sets the value of `predictionCol`.
`transform`(dataset[, params])	Transforms the input dataset with optional parameters.
`write`()	Returns an MLWriter instance for this ML instance.

Attributes

`aggregationDepth`
`coefficients`	Model coefficients.
`family`
`featuresCol`
`fitIntercept`
`hasSummary`	Indicates whether a training summary exists for this model instance.
`intercept`	Model intercept.
`labelCol`
`link`
`linkPower`
`linkPredictionCol`
`maxIter`
`numFeatures`	Returns the number of features the model was trained on.
`offsetCol`
`params`	Returns all params ordered by name.
`predictionCol`
`regParam`
`solver`
`summary`	Gets summary (e.g.
`tol`
`variancePower`
`weightCol`

Methods Documentation

clear(param)¶: Clears a param from the param map if it has been explicitly set.

copy(extra=None)¶

Creates a copy of this instance with the same uid and some extra params. This implementation first calls Params.copy and then make a copy of the companion Java pipeline component with extra params. So both the Python wrapper and the Java pipeline component get copied.

Parameters

extradict, optional: Extra parameters to copy to the new instance

Returns

JavaParams: Copy of this instance

evaluate(dataset)[source]¶

Evaluates the model on a test dataset.

New in version 2.0.0.

Parameters

datasetpyspark.sql.DataFrame: Test dataset to evaluate model on, where dataset is an instance of pyspark.sql.DataFrame

explainParam(param)¶: Explains a single param and returns its name, doc, and optional default value and user-supplied value in a string.

explainParams()¶: Returns the documentation of all params with their optionally default values and user-supplied values.

extractParamMap(extra=None)¶

Extracts the embedded default param values and user-supplied values, and then merges them with extra values from input into a flat param map, where the latter value is used if there exist conflicts, i.e., with ordering: default param values < user-supplied values < extra.

Parameters

extradict, optional: extra param values

Returns

dict: merged param map

getAggregationDepth()¶: Gets the value of aggregationDepth or its default value.

getFamily()¶: Gets the value of family or its default value.

New in version 2.0.0.

getFeaturesCol()¶: Gets the value of featuresCol or its default value.

getFitIntercept()¶: Gets the value of fitIntercept or its default value.

getLabelCol()¶: Gets the value of labelCol or its default value.

getLink()¶: Gets the value of link or its default value.

New in version 2.0.0.

getLinkPower()¶: Gets the value of linkPower or its default value.

New in version 2.2.0.

getLinkPredictionCol()¶: Gets the value of linkPredictionCol or its default value.

New in version 2.0.0.

getMaxIter()¶: Gets the value of maxIter or its default value.

getOffsetCol()¶: Gets the value of offsetCol or its default value.

New in version 2.3.0.

getOrDefault(param)¶: Gets the value of a param in the user-supplied param map or its default value. Raises an error if neither is set.

getParam(paramName)¶: Gets a param by its name.

getPredictionCol()¶: Gets the value of predictionCol or its default value.

getRegParam()¶: Gets the value of regParam or its default value.

getSolver()¶: Gets the value of solver or its default value.

getTol()¶: Gets the value of tol or its default value.

getVariancePower()¶: Gets the value of variancePower or its default value.

New in version 2.2.0.

getWeightCol()¶: Gets the value of weightCol or its default value.

hasDefault(param)¶: Checks whether a param has a default value.

hasParam(paramName)¶: Tests whether this instance contains a param with a given (string) name.

isDefined(param)¶: Checks whether a param is explicitly set by user or has a default value.

isSet(param)¶: Checks whether a param is explicitly set by user.

classmethod load(path)¶: Reads an ML instance from the input path, a shortcut of read().load(path).

predict(value)¶: Predict label for the given features.

New in version 3.0.0.

classmethod read()¶: Returns an MLReader instance for this class.

save(path)¶: Save this ML instance to the given path, a shortcut of ‘write().save(path)’.

set(param, value)¶: Sets a parameter in the embedded param map.

setFeaturesCol(value)¶: Sets the value of featuresCol.

New in version 3.0.0.

setLinkPredictionCol(value)[source]¶: Sets the value of linkPredictionCol.

New in version 3.0.0.

setPredictionCol(value)¶: Sets the value of predictionCol.

New in version 3.0.0.

transform(dataset, params=None)¶

Transforms the input dataset with optional parameters.

New in version 1.3.0.

Parameters

datasetpyspark.sql.DataFrame: input dataset
paramsdict, optional: an optional param map that overrides embedded params.

Returns

pyspark.sql.DataFrame: transformed dataset

write()¶: Returns an MLWriter instance for this ML instance.

Attributes Documentation

aggregationDepth = Param(parent='undefined', name='aggregationDepth', doc='suggested depth for treeAggregate (>= 2).')¶

coefficients¶: Model coefficients.

New in version 2.0.0.

family = Param(parent='undefined', name='family', doc='The name of family which is a description of the error distribution to be used in the model. Supported options: gaussian (default), binomial, poisson, gamma and tweedie.')¶

featuresCol = Param(parent='undefined', name='featuresCol', doc='features column name.')¶

fitIntercept = Param(parent='undefined', name='fitIntercept', doc='whether to fit an intercept term.')¶

hasSummary¶: Indicates whether a training summary exists for this model instance.

New in version 2.1.0.

intercept¶: Model intercept.

New in version 2.0.0.

labelCol = Param(parent='undefined', name='labelCol', doc='label column name.')¶

link = Param(parent='undefined', name='link', doc='The name of link function which provides the relationship between the linear predictor and the mean of the distribution function. Supported options: identity, log, inverse, logit, probit, cloglog and sqrt.')¶

linkPower = Param(parent='undefined', name='linkPower', doc='The index in the power link function. Only applicable to the Tweedie family.')¶

linkPredictionCol = Param(parent='undefined', name='linkPredictionCol', doc='link prediction (linear predictor) column name')¶

maxIter = Param(parent='undefined', name='maxIter', doc='max number of iterations (>= 0).')¶

numFeatures¶: Returns the number of features the model was trained on. If unknown, returns -1

New in version 2.1.0.

offsetCol = Param(parent='undefined', name='offsetCol', doc='The offset column name. If this is not set or empty, we treat all instance offsets as 0.0')¶

params¶: Returns all params ordered by name. The default implementation uses dir() to get all attributes of type Param.

predictionCol = Param(parent='undefined', name='predictionCol', doc='prediction column name.')¶

regParam = Param(parent='undefined', name='regParam', doc='regularization parameter (>= 0).')¶

solver = Param(parent='undefined', name='solver', doc='The solver algorithm for optimization. Supported options: irls.')¶

summary¶: Gets summary (e.g. residuals, deviance, pValues) of model on training set. An exception is thrown if trainingSummary is None.

New in version 2.0.0.

tol = Param(parent='undefined', name='tol', doc='the convergence tolerance for iterative algorithms (>= 0).')¶

variancePower = Param(parent='undefined', name='variancePower', doc='The power in the variance function of the Tweedie distribution which characterizes the relationship between the variance and mean of the distribution. Only applicable for the Tweedie family. Supported values: 0 and [1, Inf).')¶

weightCol = Param(parent='undefined', name='weightCol', doc='weight column name. If this is not set or empty, we treat all instance weights as 1.0.')¶

GeneralizedLinearRegression GeneralizedLinearRegressionSummary