Hi experts,
I am a SPM newbie. I need your help to understand F-contrasts in SPM8.
I have done some T-contrast analysis with SPM8 before. Now I have to do some ANOVA analysis in SPM8.
But I don't quite understand how to define the F-contrasts and what does it mean in different kinds of matrix (e.g. some one define matrix with integer while someone define them with fraction).
I have read some related chacters in <Human brain function>, but it seems a little hard for me to get clear. I also search in this list and somewhere online trying to get some supplement reading materials to figure out what is it. However, I made little progress.
So I hope you experts can make a way to help me to understand the F-contrast and recommand some effective and understandable materials to read.
Thank you very much!
Best!