PROC GENMOD : FWDLINK statement

[Mia264]

Hi 

I am currently using the GENMOD procedure as I need to define my own link function. I have defined the FWDLINK and INVLINK statements however my program is still using the Logit function as a link. I have no idea how to correct this. Please assist.

[ballardw]

It will help to post your Proc Genmod code to see if you are setting an option that forces the logit or using your defined link incorrectly.

[Mia264]

Thank you for your response. My proc genmod code is: 

proc genmod data=thurstone;
class gender conc;;
fwdlink=delta/sqrt(2)=probit(pc);
invlink=pc=probnorm(delta/sqrt(2));
model x/n = pc gender conc / dist = bin
type1
type3
lrci;
run;

[SAS_Rob · Accepted solution]

I suspect that you will find an ERROR in your LOG if you look regarding the extra '=' sign and the way you have defined the fwdlink function.  It should be something like the code in the documentation.

https://go.documentation.sas.com/?docsetId=statug&docsetTarget=statug_genmod_syntax25.htm&docsetVers...

You need to use the keywords _MEAN_ _RESP_, etc.

[Mia264]

Thank you so much.