https://communities.sas.com/t5/Statistical-Procedures/Split-plot-with-covariate/m-p/359799#M18997 <P>Hi</P><P><SPAN>I conducted an experiment containing three treatments over a two year period (the trial on the second year was a replicate of the first year: same treatments but different animals). I was looking at the effect of proper animal handling at early age on growth. In all these two years the animals after birth were randomly allocated to treatments (treatment 1- animals were gently picked at random and stroked while treatment 2- animals just experienced human presence in their enclousure and treatment 3- was control human presence was limited feed supply. Now s</SPAN>ince treatment was supplied on a group of animal not individual animal due to the fact that not all animals (N=60 treatment 1 first year and 70 second year) per day were picked/stroked for 2 months a split plot might be a good design to analyse the weight after 2 months with&nbsp;<SPAN>with year being your whole plot factor and treatment within year as your subplot factor.</SPAN></P><P>&nbsp;</P><P><SPAN>My questions are:</SPAN></P><P><SPAN>1. How do i define the covariate (weight of animal after birth) in the glimmix model?</SPAN></P><P><SPAN>2. Can you check my random variiable statements i doubt they are alright, i am not that familiar with GLIMMIX.</SPAN></P><P><SPAN>3. Is the following commands appropriate to run my analysis for meaningful results?</SPAN></P><P>&nbsp;</P><P><SPAN>PROC GLIMMIX DATA= growth;<BR />CLASS YEAR CAMP GENOTYPE GENDER TREATMENT;<BR />MODEL WEIGHT= YEAR|GENOTYPE|GENDER|TREATMENT/ SOLUTION DDFM= RES;<BR />RANDOM CAMP;<BR />RANDOM YEAR*TREATMENT;<BR />LSMEANS YEAR|GENOTYPE|GENDER|TREATMENT/PDIFF;<BR />RUN; QUIT;</SPAN></P><P>&nbsp;</P><P><SPAN>Any help will be apprecited.</SPAN></P><P><SPAN>Thank you!</SPAN></P> Thu, 18 May 2017 20:04:09 GMT Education 2017-05-18T20:04:09Z https://communities.sas.com/t5/Statistical-Procedures/Split-plot-with-covariate/m-p/359799#M18997 <P>Hi</P><P><SPAN>I conducted an experiment containing three treatments over a two year period (the trial on the second year was a replicate of the first year: same treatments but different animals). I was looking at the effect of proper animal handling at early age on growth. In all these two years the animals after birth were randomly allocated to treatments (treatment 1- animals were gently picked at random and stroked while treatment 2- animals just experienced human presence in their enclousure and treatment 3- was control human presence was limited feed supply. Now s</SPAN>ince treatment was supplied on a group of animal not individual animal due to the fact that not all animals (N=60 treatment 1 first year and 70 second year) per day were picked/stroked for 2 months a split plot might be a good design to analyse the weight after 2 months with&nbsp;<SPAN>with year being your whole plot factor and treatment within year as your subplot factor.</SPAN></P><P>&nbsp;</P><P><SPAN>My questions are:</SPAN></P><P><SPAN>1. How do i define the covariate (weight of animal after birth) in the glimmix model?</SPAN></P><P><SPAN>2. Can you check my random variiable statements i doubt they are alright, i am not that familiar with GLIMMIX.</SPAN></P><P><SPAN>3. Is the following commands appropriate to run my analysis for meaningful results?</SPAN></P><P>&nbsp;</P><P><SPAN>PROC GLIMMIX DATA= growth;<BR />CLASS YEAR CAMP GENOTYPE GENDER TREATMENT;<BR />MODEL WEIGHT= YEAR|GENOTYPE|GENDER|TREATMENT/ SOLUTION DDFM= RES;<BR />RANDOM CAMP;<BR />RANDOM YEAR*TREATMENT;<BR />LSMEANS YEAR|GENOTYPE|GENDER|TREATMENT/PDIFF;<BR />RUN; QUIT;</SPAN></P><P>&nbsp;</P><P><SPAN>Any help will be apprecited.</SPAN></P><P><SPAN>Thank you!</SPAN></P> Thu, 18 May 2017 20:04:09 GMT https://communities.sas.com/t5/Statistical-Procedures/Split-plot-with-covariate/m-p/359799#M18997 Education 2017-05-18T20:04:09Z https://communities.sas.com/t5/Statistical-Procedures/Split-plot-with-covariate/m-p/359891#M18998 <P>Anyone help me please!</P> Fri, 19 May 2017 07:42:53 GMT https://communities.sas.com/t5/Statistical-Procedures/Split-plot-with-covariate/m-p/359891#M18998 Education 2017-05-19T07:42:53Z https://communities.sas.com/t5/Statistical-Procedures/Split-plot-with-covariate/m-p/359966#M18999 <P>Since it is a question about statistic , post it at Statisical forum .</P> <P><a href="https://communities.sas.com/t5/user/viewprofilepage/user-id/13758">@lvm</a>&nbsp;<a href="https://communities.sas.com/t5/user/viewprofilepage/user-id/15363">@SteveDenham</a>&nbsp;<a href="https://communities.sas.com/t5/user/viewprofilepage/user-id/13633">@StatDave</a>&nbsp;are there .</P> Fri, 19 May 2017 13:30:36 GMT https://communities.sas.com/t5/Statistical-Procedures/Split-plot-with-covariate/m-p/359966#M18999 Ksharp 2017-05-19T13:30:36Z https://communities.sas.com/t5/Statistical-Procedures/Split-plot-with-covariate/m-p/361843#M19027 <P>With an appreciative nod to&nbsp;<a href="https://communities.sas.com/t5/user/viewprofilepage/user-id/13879">@Reeza</a>&nbsp;who linked to</P> <P><A href="https://stackoverflow.com/help/how-to-ask&nbsp;" target="_self">https://stackoverflow.com/help/how-to-ask&nbsp;</A></P> <P>in another posting, you will need to provide more information to get a correct answer to the right question. Please include definitions of all variables in the model and a more complete description of the experimental protocol.</P> <P>&nbsp;</P> <P>&nbsp;</P> Fri, 26 May 2017 03:02:57 GMT https://communities.sas.com/t5/Statistical-Procedures/Split-plot-with-covariate/m-p/361843#M19027 sld 2017-05-26T03:02:57Z