03-12-2018 04:29 PM
I am performing a three-way 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.
03-12-2018 05:53 PM
Comparing levels to one another is not the place where CONTRAST statements are needed.
Use the LSMEANS statement to compare the levels.
03-12-2018 06:47 PM
Thank you for your reply.
If I want to test some customized hypothesis regarding some specific levels of a factor, wouldn't I need to use contrast statement?