afni.nimh.nih.gov

Hi all,

I tried to use 3dDetrend and 3dFourier without -retrend option to remove the linear trend of a 3D+t dataset. From visual check, I found that 3dDetrend gave me much better result than 3dFourier. What is the difference in detrending process between these two programs? Can I use 3dFourier for this purpose?

Thanks,
Xiangchuan Chen