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 |