https://communities.sas.com/t5/SAS-Procedures/Year-and-Industry-fixed-effects/m-p/247363#M56302 <P>Your code looks good and why not add sic into model ? since you have already encode it.</P> <P>&nbsp;</P> <P><SPAN>MODEL dependent&nbsp;= independent SIC / rsq;</SPAN></P> <P>&nbsp;</P> <P><SPAN>And I would doubt if &nbsp;STRATA will work on with CLASS variables. And What LOG is saying ?</SPAN></P> Tue, 02 Feb 2016 02:53:29 GMT Ksharp 2016-02-02T02:53:29Z https://communities.sas.com/t5/SAS-Procedures/Year-and-Industry-fixed-effects/m-p/247199#M56283 <P>&nbsp;</P><P>I am trying to include year and industry fixed effects in my logistic model. Is this the correct way!</P><P>&nbsp;</P><P>PROC logistic DATA= mydata&nbsp;desc;<BR />CLASS sic /PARAM=REF;<BR />MODEL dependent&nbsp;= independent&nbsp;/ rsq;<BR />STRATA fyear;<BR />run; quit;</P><P>&nbsp;</P><P>Thank you!</P> Mon, 01 Feb 2016 13:47:20 GMT https://communities.sas.com/t5/SAS-Procedures/Year-and-Industry-fixed-effects/m-p/247199#M56283 bronco 2016-02-01T13:47:20Z https://communities.sas.com/t5/SAS-Procedures/Year-and-Industry-fixed-effects/m-p/247363#M56302 <P>Your code looks good and why not add sic into model ? since you have already encode it.</P> <P>&nbsp;</P> <P><SPAN>MODEL dependent&nbsp;= independent SIC / rsq;</SPAN></P> <P>&nbsp;</P> <P><SPAN>And I would doubt if &nbsp;STRATA will work on with CLASS variables. And What LOG is saying ?</SPAN></P> Tue, 02 Feb 2016 02:53:29 GMT https://communities.sas.com/t5/SAS-Procedures/Year-and-Industry-fixed-effects/m-p/247363#M56302 Ksharp 2016-02-02T02:53:29Z