https://communities.sas.com/t5/Statistical-Procedures/SAS-program-for-RCBD-with-different-seasons-and-different/m-p/308525#M16328 <P>Just erased everything I wrote, because I misunderstood the design, and I'm still not completely clear.</P> <P>&nbsp;</P> <P>Is this correct: 4 blocks, 4 treatments gives 16 experimental units, each of which has 10 pots. &nbsp;Now some of the pots are sampled for pH at 4 different&nbsp;dates. &nbsp;It appears then that some pots would be sampled 2 times and some 3 times (and it may be something other than that). &nbsp;On top of that, you have 2 seasons.</P> <P>&nbsp;</P> <P>Let us know if my assumption about the design is correct, and I might be able to come up with an analysis plan.</P> <P>&nbsp;</P> <P>Steve Denham</P> <P>&nbsp;</P> <P>&nbsp;</P> Tue, 01 Nov 2016 14:51:02 GMT SteveDenham 2016-11-01T14:51:02Z https://communities.sas.com/t5/Statistical-Procedures/SAS-program-for-RCBD-with-different-seasons-and-different/m-p/302095#M16072 <P>Hello! i have conducted a&nbsp;greenhouse&nbsp;experiment with 4 treatments arranged according to a RCBD, I had 4 blocks (replications) and each experimental unit was constituted by 10 pots. during the experiment I have analyzed the soil pH at different dates (4&nbsp;different dates), on soil sampled every time from a&nbsp;different pot (not the same pot), therefore I think these should not be considered as repeated measures or not? The same experiment was conducted two times during two different seasons (Summer and Winter). Besides evaluating the treatment effect, I would like to compare the two seasons and also the different sampling dates. So I have a few questions:</P><P>What will be the best procedure to use in this case? Is the GLM procedure adequate?</P><P>How I should consider the season and the sampling dates?</P><P>Can you please help me to build the sas program for this case?&nbsp;</P><P>Thanks in advance for your help.</P><P>FD&nbsp;</P> Mon, 03 Oct 2016 16:54:11 GMT https://communities.sas.com/t5/Statistical-Procedures/SAS-program-for-RCBD-with-different-seasons-and-different/m-p/302095#M16072 FDsas 2016-10-03T16:54:11Z https://communities.sas.com/t5/Statistical-Procedures/SAS-program-for-RCBD-with-different-seasons-and-different/m-p/308525#M16328 <P>Just erased everything I wrote, because I misunderstood the design, and I'm still not completely clear.</P> <P>&nbsp;</P> <P>Is this correct: 4 blocks, 4 treatments gives 16 experimental units, each of which has 10 pots. &nbsp;Now some of the pots are sampled for pH at 4 different&nbsp;dates. &nbsp;It appears then that some pots would be sampled 2 times and some 3 times (and it may be something other than that). &nbsp;On top of that, you have 2 seasons.</P> <P>&nbsp;</P> <P>Let us know if my assumption about the design is correct, and I might be able to come up with an analysis plan.</P> <P>&nbsp;</P> <P>Steve Denham</P> <P>&nbsp;</P> <P>&nbsp;</P> Tue, 01 Nov 2016 14:51:02 GMT https://communities.sas.com/t5/Statistical-Procedures/SAS-program-for-RCBD-with-different-seasons-and-different/m-p/308525#M16328 SteveDenham 2016-11-01T14:51:02Z