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shaz71 TrackerSat, 05 Oct 2024 09:30:26 GMT2024-10-05T09:30:26ZRe: Split plot design with more than two factors
https://communities.sas.com/t5/Statistical-Procedures/Split-plot-design-with-more-than-two-factors/m-p/499140#M25762
<P>Hi Data_null__, here is a study diagram of the experiment. the replication happens at the sub-plot level. It is different than replicating the entire experiment. The study diagram only shows 3 main-plot treatment combinations out of 27.</P><P> </P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="split-plot_sg.JPG" style="width: 600px;"><img src="https://communities.sas.com/t5/image/serverpage/image-id/23576i50D77F73BDB3BD30/image-size/large?v=v2&px=999" role="button" title="split-plot_sg.JPG" alt="split-plot_sg.JPG" /></span></P>Wed, 26 Sep 2018 15:30:01 GMThttps://communities.sas.com/t5/Statistical-Procedures/Split-plot-design-with-more-than-two-factors/m-p/499140#M25762shaz712018-09-26T15:30:01ZRe: Split plot design with more than two factors
https://communities.sas.com/t5/Statistical-Procedures/Split-plot-design-with-more-than-two-factors/m-p/498821#M25756
<P>Thank you so much. That makes it really clear. I can see that the SS are in agreement. This makes perfect sense to me. </P>Tue, 25 Sep 2018 19:02:52 GMThttps://communities.sas.com/t5/Statistical-Procedures/Split-plot-design-with-more-than-two-factors/m-p/498821#M25756shaz712018-09-25T19:02:52ZRe: Split plot design with more than two factors
https://communities.sas.com/t5/Statistical-Procedures/Split-plot-design-with-more-than-two-factors/m-p/498797#M25753
<P>Thank you for the quick reply and for the example. Is the statement 'do block=1,2;' for the two replicates; Did I understand this correctly? I will run this example and try to see if I understand how it is structured. At the moment I dont fully understand the reason for the two PROC MIXED models. Forgive me, I am not all that experienced in SAS (yet)</P>Tue, 25 Sep 2018 18:23:15 GMThttps://communities.sas.com/t5/Statistical-Procedures/Split-plot-design-with-more-than-two-factors/m-p/498797#M25753shaz712018-09-25T18:23:15ZSplit plot design with more than two factors
https://communities.sas.com/t5/Statistical-Procedures/Split-plot-design-with-more-than-two-factors/m-p/498775#M25751
<P>Hi, this is my first post on SAS. I have a split plot design in 5 factors. Factors A, B, and C have 3 levels and are hard to change factors applied to the main plots. Each main plot contains one combination of A,B,C (so 27 main plots in the 3^3 main plot factorial). The sub plot receives a 3^2 factorial in easy to change factors (D, E). Every example I find only discusses how to write the SAS program for Factors A and B. I replicate the entire design twice.</P><P> </P><P>I cant find anything on how to adjust the below SAS code to handle 3 factors in the main plot and two factors in the subplots. </P><P> </P><P>Simple Split plot in 2 factors:</P><P> </P><PRE class="sascode">proc mixed;
class A B Block;
model Y = A B A*B;
random Block A*Block;
run;</PRE><P> </P><P> Can someone help or point me in the right direction? much appreciated.</P>Tue, 25 Sep 2018 16:38:44 GMThttps://communities.sas.com/t5/Statistical-Procedures/Split-plot-design-with-more-than-two-factors/m-p/498775#M25751shaz712018-09-25T16:38:44Z