oneHot

Syntax

oneHot(obj, encodingColumns)

Arguments

obj is an in-memory table.

encodingColumns is a STRING scalar or vector, indicating the columns for one-hot encoding.

Details

Perform one-hot encoding on the specified columns in an in-memory table. It returns a table with columns in the order of encoded columns and non-encoded columns. The name of the encoded columns is "original column name_value".

Examples

t = table( take(`Tom`Lily`Jim, 10) as name, take(true false, 10) as gender, take(21..23,10) as age);
oneHot(t, `name`gender);
name_Tom name_Lily name_Jim gender_1 gender_0 age
1 0 0 1 0 21
0 1 0 0 1 22
0 0 1 1 0 23
1 0 0 0 1 21
0 1 0 1 0 22
0 0 1 0 1 23
1 0 0 1 0 21
0 1 0 0 1 22
0 0 1 1 0 23
1 0 0 0 1 21