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 |