Proc Logistic v. HP Logistic Certain Output Predicted Probabilities Multinomial Case (SAS EG 7.1)

[davis]

Good afternoon,

I have a question, and was wondering if someone could either lend a hand or point me in the right direction.

I conducted a multinomial run using proc logistic.  One output is the predicted probability for each outcome in the following form:  

Pred_A=exb_A /(1+exb_A+exb_B+exb_C+exb_D);

Pred_B=exb_B /(1+exb_A+exb_B+exb_C+exb_D);

Pred_C=exb_C /(1+exb_A+exb_B+exb_C+exb_D);

Pred_D=exb_D /(1+exb_A+exb_B+exb_C+exb_D);

Pred_E=1 /(1+exb_A+exb_B+exb_C+exb_D);

where Pred_E = 1/(1+Pred_A+Pred_B+Pred_C+Pred_D) and produced automatically by proc logistic.

Does HP Logistic have a similar feature for a multinomial run?

Thanks.

[sbxkoenk]

Hello,

For PROC HPLOGISTIC contrasted with PROC LOGISTIC, look here:

https://go.documentation.sas.com/doc/en/statug/15.2/statug_hplogistic_overview02.htm

And for multinomial response, use LINK=GLOGIT/GENLOGIT.

If you specify LINK=GLOGIT, the procedure assumes a generalized logit model for nominal (unordered) data, regardless of the number of response categories.

https://go.documentation.sas.com/doc/en/statug/15.2/statug_hplogistic_syntax07.htm#statug.hplogistic...

Then you get similar output to PROC LOGISTIC, no?

If not, post your PROC LOGISTIC code and we will reply with the equivalent PROC HPLOGISTIC code.

Regards,

Koen