DefaultParamsReader

class pyspark.ml.util.DefaultParamsReader(cls: Type[pyspark.ml.util.DefaultParamsReadable[RL]])

Specialization of MLReader for Params types

Default MLReader implementation for transformers and estimators that contain basic (json-serializable) params and no data. This will not handle more complex params or types with data (e.g., models with coefficients).

Methods

getAndSetParams(instance, metadata[, skipParams])	Extract Params from metadata, and set them in the instance.
isPythonParamsInstance(metadata)
load(path)	Load the ML instance from the input path.
loadMetadata(path, sc[, expectedClassName])	Load metadata saved using DefaultParamsWriter.saveMetadata()
loadParamsInstance(path, sc)	Load a Params instance from the given path, and return it.
session(sparkSession)	Sets the Spark Session to use for saving/loading.

Attributes

sc	Returns the underlying SparkContext.
sparkSession	Returns the user-specified Spark Session or the default.

Methods Documentation

static getAndSetParams(instance: RL, metadata: Dict[str, Any], skipParams: Optional[List[str]] = None) → None

Extract Params from metadata, and set them in the instance.

static isPythonParamsInstance(metadata: Dict[str, Any]) → bool

load(path: str) → RL

Load the ML instance from the input path.

static loadMetadata(path: str, sc: pyspark.context.SparkContext, expectedClassName: str = '') → Dict[str, Any]

Load metadata saved using DefaultParamsWriter.saveMetadata()

Parameters

pathstr

scpyspark.SparkContext

expectedClassNamestr, optional

If non empty, this is checked against the loaded metadata.

static loadParamsInstance(path: str, sc: pyspark.context.SparkContext) → RL

Load a Params instance from the given path, and return it. This assumes the instance inherits from MLReadable.

session(sparkSession: pyspark.sql.session.SparkSession) → RW

Sets the Spark Session to use for saving/loading.

Attributes Documentation

sc

Returns the underlying SparkContext.

sparkSession

Returns the user-specified Spark Session or the default.

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DefaultParamsReadable

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DefaultParamsWritable