setenum()
Here are how to use setenum() functions.
A.setenum()
Description:
Map enumerated values as integers.
Syntax:
|
A.setenum() |
During modeling, map members in enumerated variable A as integers and return a binary sequence containing the mapping result and mapping process records Rec |
|
A.setenum@r(Rec) |
During scoring, perform mapping in the same rule on enumerated variable A according to mapping process records Rec; map each new enumerated value in the scoring data as 0 |
Note:
The external library function (See External Library Guide) maps enumerated values as integers.
Parameter:
|
A |
A sequence of enumerated variable values |
|
Rec |
A sequence of mapping process records |
Option:
|
@c |
Change original data into mapping result after execution |
Return value:
A sequence
Example:
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|
A |
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1 |
[a,b,f,r,g,j,r] |
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|
2 |
[b,a,f,r,g,j,r,p] |
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3 |
=A1.setenum@c() |
A3(1) Mapping result; A3(2) Mapping process records Rec. @c Change original data into mapping result. |
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4 |
=A2.setenum@r(A3(2)) |
Map members of A2 according to A3’s mapping process records Rec. |
P.setenum()
Description:
The external library function (See External Library Guide) maps enumerated variable values as integers.
Syntax:
|
P.setenum(cn) |
During modeling, map values of enumerated variable cn as integers and return a binary sequence containing the mapping result and mapping process records Rec |
|
|
|
P.setenum@r(cn, Rec) |
During scoring, map values of enumerated variable cn as integers according to mapping process records Rec |
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|
Parameter:
|
P |
A table sequence/record sequence |
|
cn |
A string/number, which is the name of column (or the column number starting from 1) – the to-be-pre-processed variable – in a table sequence or record sequence |
|
Rec |
A sequence of mapping process records |
Option:
|
@c |
Change original data into mapping result after execution |
Return value:
A sequence
Example:
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|
A |
|
|
1 |
=T("D://house_prices_train.csv") |
Import modeling data. |
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2 |
=T("D://house_prices_test.csv") |
Import scoring data. |
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3 |
=A1.setenum("MSZoning") |
A3(1) Mapping result; A3(2) Mapping process records Rec. |
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4 |
=A2.setenum@r("MSZoning",A3(2)) |
Map values of variable “MSZoing” in the scoring data in the same rule according to A3’s removing process records. |
