https://communities.sas.com/t5/SAS-Programming/Contrast-statement-for-three-way-ANOVA/m-p/444955#M283046 <P>Comparing levels to one another is not the place where CONTRAST statements are needed.</P> <P>&nbsp;</P> <P>Use the LSMEANS statement to compare the levels.</P> Mon, 12 Mar 2018 21:53:02 GMT PaigeMiller 2018-03-12T21:53:02Z https://communities.sas.com/t5/SAS-Programming/Contrast-statement-for-three-way-ANOVA/m-p/444930#M283045 <P>I am performing a three-way&nbsp;ANOVA and I got a significant three-way interaction between the factors. In the process of further analysis, I need to write a contrast statement to compare the differences between levels of a variable (di - 6 levels) at different levels of another variable (dr - 3 levels). But I am not sure how to write the contrast coefficients for this condition. I have attached my data and SAS code. Please give me some input.&nbsp;</P> Mon, 12 Mar 2018 20:29:04 GMT https://communities.sas.com/t5/SAS-Programming/Contrast-statement-for-three-way-ANOVA/m-p/444930#M283045 Narendran 2018-03-12T20:29:04Z https://communities.sas.com/t5/SAS-Programming/Contrast-statement-for-three-way-ANOVA/m-p/444955#M283046 <P>Comparing levels to one another is not the place where CONTRAST statements are needed.</P> <P>&nbsp;</P> <P>Use the LSMEANS statement to compare the levels.</P> Mon, 12 Mar 2018 21:53:02 GMT https://communities.sas.com/t5/SAS-Programming/Contrast-statement-for-three-way-ANOVA/m-p/444955#M283046 PaigeMiller 2018-03-12T21:53:02Z https://communities.sas.com/t5/SAS-Programming/Contrast-statement-for-three-way-ANOVA/m-p/444968#M283047 <P>Thank you for your reply.&nbsp;</P><P>&nbsp;</P><P>If I want to test some customized hypothesis regarding some specific levels of a factor, wouldn't I need to use contrast statement?</P> Mon, 12 Mar 2018 22:47:01 GMT https://communities.sas.com/t5/SAS-Programming/Contrast-statement-for-three-way-ANOVA/m-p/444968#M283047 Narendran 2018-03-12T22:47:01Z