afni.nimh.nih.gov

I have just added the "-random" option to program 3dTsort, which will randomly permute each voxel (independently) from an input 3D+time dataset. Source code is now in the AFNI github repository, and binaries will be available whenever we next rebuild.

Fortunately, I had a random permutation generator already coded up in 3dttest++, so was able to re-purpose that, and the rest was just bookkeeping (an excellent word with 3 double letters in a row).