dataFrame.columns.decode — dummies()

The dummies() method of the decode object returns the categorical values reconstructed from the specified dummy columns.

dataFrame.columns(...columnNames).decode.dummies()

Scope

dataFrame

Family

decode

Returns

array

columnNames ( string[] )

The names of the dummy columns used to reconstruct the original categorical values.

mask ( string[] )

An array containing the decoded categorical values.

// get decoded values from 2 columns of the dataFrame
var mask = dataFrame.columns('dummy_col_1', 'dummy_col_2').decode.dummies();

// add values to the dataFrame
dataFrame.column('newValues').set(mask);