ft_index_to_string

From sparklyr v0.2.28 by Javier Luraschi

Feature Transformation -- IndexToString

Symmetrically to ft_string_indexer, ft_index_to_string maps a column of label indices back to a column containing the original labels as strings.

Usage

ft_index_to_string(x, input_col = NULL, output_col = NULL)

Arguments

x: An object (usually a spark_tbl) coercable to a Spark DataFrame.
input_col: The name of the input column(s).
output_col: The name of the output column.

See Also

See http://spark.apache.org/docs/latest/ml-features.html for more information on the set of transformations available for DataFrame columns in Spark.

Other feature transformation routines: ft_binarizer, ft_bucketizer, ft_discrete_cosine_transform, ft_elementwise_product, ft_one_hot_encoder, ft_quantile_discretizer, ft_sql_transformer, ft_string_indexer, ft_vector_assembler, sdf_mutate

Documentation reproduced from package sparklyr, version 0.2.28, License: file LICENSE

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