topic Re: How to run test data on decision tree (PROC HPSPLIT) in SAS Programming

How to run test data on decision tree (PROC HPSPLIT)

mariko5797 — Fri, 20 Oct 2023 16:03:43 GMT

This feels a bit like a dumb question, but how do I run my testing data on the resulting decision tree from PROC HPSPLIT?

In R, I can use pred<- predict(tree, test, type= "class"); confusionMatrix(test$Species, pred). Is there a similar method with SAS?

Re: How to run test data on decision tree (PROC HPSPLIT)

PaigeMiller — Fri, 20 Oct 2023 16:58:52 GMT

It appears to me that the validation data (and/or test data) for PROC HPSPLIT can be specified in the PARTITION statement using the ROLEVAR= option.

Re: How to run test data on decision tree (PROC HPSPLIT)

Ksharp — Sat, 21 Oct 2023 10:33:37 GMT

One way is using CODE statement.

filename x temp;
proc hpsplit data=sashelp.heart maxdepth=5;
   class status sex bp_status;
   model status = sex bp_status  weight height;
   prune costcomplexity;
   code file=x;
run;


data test;
set sashelp.heart(keep=status sex  bp_status  weight height);
run;
data want;
 set test;
 %include x;
run;