A.bi()

Description:

Split a low-frequency categorical enumerated sequence variable that contains a number of categories not greater than 6 into multiple binary variables during modeling.

Syntax:

A.bi()

During modeling, split low-frequency categorical enumerated variable A that contains a number of categories not greater than 6 into multiple binary variables, and return a binary sequence consisting of a table sequence of splitting result and a sequence of splitting process records Rec.

A.bi@r(Rec)

During scoring, split low-frequency categorical enumerated variable A that contains a number of categories not greater than 6 into multiple binary variables according to the sequence of splitting process records Rec, and return result as a table sequence.

Note:

The external library function (See External Library Guide) splits a low-frequency categorical enumerated sequence variable that contains a number of categories not greater than 6 into multiple binary variables during modeling.

Parameter:

A

A sequence, which is a low-frequency categorical enumerated variable that contains a number of categories no greater than 6.

Rec

A sequence of splitting process records.

Return value:

Sequence/Table sequence

Example:

 

A

 

1

=T("D://house_prices_train.csv")

 

2

=A1.(MSZoning)

A variable containing a number of categories no greater than 6.

3

=A2.bi()

A3(1) A table sequence of splitting result;

A3(2) A sequence of splitting process records Rec.

4

=A2.bi@r(A3(2))

Split A2’s variable into multiple variables according to A3’s sequence of splitting process records Rec.