From: Joe Nocera <v39k9_at_unb.ca>

Date: Tue 08 Feb 2005 - 03:48:28 EST

Joseph J. Nocera

Ph.D. Candidate

NB Coop. Fish & Wildlife Research Unit

Biology Department - Univ. New Brunswick Fredericton, NB

Canada E3B 6E1

tel: (902) 679-5733

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Feb 08 03:32:14 2005

Date: Tue 08 Feb 2005 - 03:48:28 EST

CATMOD in SAS builds log-linear glms. If you are truly trying to create logistic regressions in SAS, use PROC LOGISTIC instead. If you really meant that you are trying to create log-linear models in R - then look up the usage of the function loglin (e.g. loglin())

Cheers,

Joe

Quoting Helene.Dryssens@eleves.polytech-lille.fr:

*> Hi,
**>
*

> we try to do a logistic regression with the function glm.

*> But we notice that this function don't give the same results as the SAS proc
**> catmod (differents estimate given).
**> We try to change the contrast on R system with:
**> > options(contrasts=c(unordered="contr.SAS",ordered="contr.poly"))
**>
**> We also try with brlr and logistf functions.
**> Unfortunately, the estimate aren't still the same.
**>
**> Please could someone help us.
**>
**> Thank you
**>
**> --------------------------------------------------
**> This mail sent through Polytech'Lille WebMail (IMP)
**>
**> ______________________________________________
**> R-help@stat.math.ethz.ch mailing list
**> https://stat.ethz.ch/mailman/listinfo/r-help
**> PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
**>
*

Joseph J. Nocera

Ph.D. Candidate

NB Coop. Fish & Wildlife Research Unit

Biology Department - Univ. New Brunswick Fredericton, NB

Canada E3B 6E1

tel: (902) 679-5733

"Why does it have to be spiders? Why can't it be 'follow the butterflies'"?!

– Ron Weasley, Harry Potter & The Chamber of Secrets

R-help@stat.math.ethz.ch mailing list

https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html Received on Tue Feb 08 03:32:14 2005

*
This archive was generated by hypermail 2.1.8
: Tue 08 Feb 2005 - 04:20:32 EST
*