topic Re: variable value in SAS Programming

variable value

wajs — Wed, 13 Mar 2019 22:54:18 GMT

Hi,

When I run binary logistic regression, I put values for outcome categories as case=1, control=0.

Does this apply to SAS also, or I can put values as case=1, control=2?

Thanks

Abdul Wajid

Re: variable value

ballardw — Wed, 13 Mar 2019 23:19:55 GMT

You can use just about any two levels you like, including character if using Proc logistic.

You an specify which even is of interest using event syntax such as

model: variable(event='A') = <predictors>

model: variable(event='2') = <predictors>

The default would be event=first which would be the first ordered category. You can specify either a formatted value or key words First and Last for event. Other options can affect the order considered such as DESCENDING , ORDER= .

The documentation has several worked examples.

Re: variable value

wajs — Thu, 14 Mar 2019 00:32:54 GMT

Thanks!