topic Spliting data into 2 randomly in SAS Programming

Spliting data into 2 randomly

jinc — Wed, 29 Mar 2017 21:17:49 GMT

I have a dataset where I have to build a credit score model for bad customers. It is a logistic regression model. I want to build the model and thereafter test it. Can anybody tell me the sas code to split the data.

Re: Spliting data into 2 randomly

art297 — Wed, 29 Mar 2017 21:49:51 GMT

If you just want a 50/50 split then you could use something like:

data build validate;
  set sashelp.prdsale;
  if uniform(0) le .5 then output build;
  else output validate;
run;

Art, CEO, AnalystFinder.com

Re: Spliting data into 2 randomly

Reeza — Wed, 29 Mar 2017 22:15:07 GMT

PROC SURVEYSELECT is typically used to generate random samples. If you want to do bootstrapping or any type of cross validation, I highly recommend the paper by David Cassell, Don't be loopy.

http://www2.sas.com/proceedings/forum2007/183-2007.pdf