Difference b/w Estimate and Constant statment in proc mixed?

[HimaAalamuri]

Hi,

1) I want to know what is the exact difference b/w these two statments in proc mixed?

2) how to constract that statment in model?

i red so many documents but i am not sure how to write that statment in my model.

So please explain me in detailed, if possible with example!

Hima

[lvm]

Here is a good place to get started.

24447 - Examples of writing CONTRAST and ESTIMATE statements