sparseEncoder

fun sparseEncoder(schema: StructType, vararg columns: String): SparseEncoder(source)

Encodes numeric and categorical features into sparse array with one-hot encoding of categorical variables.

the SparseEncoder.

schema

the data frame schema.

columns

the column names to encode. If empty, all numeric and categorical columns will be used.

fun DataFrame.sparseEncoder(vararg columns: String): SparseEncoder(source)

Creates a sparse encoder for this DataFrame.

the SparseEncoder.

columns

the column names to encode. If empty, all numeric and categorical columns will be used.