topic Re: Glimmix or Mixed in SAS Procedures https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47823#M12875 <HTML><HEAD></HEAD><BODY><P>Ok, thanks</P></BODY></HTML> Thu, 25 Jul 2013 16:33:45 GMT Maneco 2013-07-25T16:33:45Z Glimmix or Mixed https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47819#M12871 Hi, I'm using glimmix but my questin is applicable to mixed too.<BR /> I'm trying to analyse animal behavioural data. I have tha data entered as binomial by animal but the fact is animals affects others behavior so I have to analyse by separated groups of animals.<BR /> How I tell SAS to use a group of animals (REP variable) as a sample unit instead of an individual animal?<BR /> Thanks Thu, 18 Sep 2008 09:03:25 GMT https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47819#M12871 Maneco 2008-09-18T09:03:25Z Re: Glimmix or Mixed https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47820#M12872 Rather than attempting to make the herd the unit of measure and treating each animal as a repeat, the more traditional way of approaching the problem is to use the animal as the unit of measurement and specify the herd as a random effect. Thu, 18 Sep 2008 14:38:26 GMT https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47820#M12872 Doc_Duke 2008-09-18T14:38:26Z Re: Glimmix or Mixed https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47821#M12873 Thanks Doc, for your quick answer. So, you say with this approach you solve the no-independence issue that exist inside each herd? I think there's no a herd effect but an individual effect...Thanks again Thu, 18 Sep 2008 15:24:27 GMT https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47821#M12873 Maneco 2008-09-18T15:24:27Z Re: Glimmix or Mixed https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47822#M12874 See the example at the beginning of the MIXED documentation in 9.2. It uses family as a random effect. Thu, 18 Sep 2008 15:40:44 GMT https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47822#M12874 Doc_Duke 2008-09-18T15:40:44Z Re: Glimmix or Mixed https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47823#M12875 <HTML><HEAD></HEAD><BODY><P>Ok, thanks</P></BODY></HTML> Thu, 25 Jul 2013 16:33:45 GMT https://communities.sas.com/t5/SAS-Procedures/Glimmix-or-Mixed/m-p/47823#M12875 Maneco 2013-07-25T16:33:45Z