Source code for mmlspark.stages.SelectColumns

# Copyright (C) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License. See LICENSE in project root for information.


import sys
if sys.version >= '3':
    basestring = str

from pyspark.ml.param.shared import *
from pyspark import keyword_only
from pyspark.ml.util import JavaMLReadable, JavaMLWritable
from mmlspark.core.serialize.java_params_patch import *
from pyspark.ml.wrapper import JavaTransformer, JavaEstimator, JavaModel
from pyspark.ml.common import inherit_doc
from mmlspark.core.schema.Utils import *

[docs]@inherit_doc class SelectColumns(ComplexParamsMixin, JavaMLReadable, JavaMLWritable, JavaTransformer): """ Args: cols (list): Comma separated list of selected column names """ @keyword_only def __init__(self, cols=None): super(SelectColumns, self).__init__() self._java_obj = self._new_java_obj("com.microsoft.ml.spark.stages.SelectColumns") self.cols = Param(self, "cols", "cols: Comma separated list of selected column names") if hasattr(self, "_input_kwargs"): kwargs = self._input_kwargs else: kwargs = self.__init__._input_kwargs self.setParams(**kwargs)
[docs] @keyword_only def setParams(self, cols=None): """ Set the (keyword only) parameters Args: cols (list): Comma separated list of selected column names """ if hasattr(self, "_input_kwargs"): kwargs = self._input_kwargs else: kwargs = self.__init__._input_kwargs return self._set(**kwargs)
[docs] def setCols(self, value): """ Args: cols (list): Comma separated list of selected column names """ self._set(cols=value) return self
[docs] def getCols(self): """ Returns: list: Comma separated list of selected column names """ return self.getOrDefault(self.cols)
[docs] @classmethod def read(cls): """ Returns an MLReader instance for this class. """ return JavaMMLReader(cls)
[docs] @staticmethod def getJavaPackage(): """ Returns package name String. """ return "com.microsoft.ml.spark.stages.SelectColumns"
@staticmethod def _from_java(java_stage): module_name=SelectColumns.__module__ module_name=module_name.rsplit(".", 1)[0] + ".SelectColumns" return from_java(java_stage, module_name)