FsFastGroupSurfaceRandomEffectsAnalysis

- func2sph-sess -analysis <analysis> -projfrac <projfrac> -sf <sessid> -df sesspar
  <projfrac>=.3 is typical
- sphsmooth-sess -analysis <analysis> -sf <sessid> -df sesspar -smoothsteps <XX> -outsphdir sphsm<XX>
- isxavg-re-sess -analysis <analysis> -group <group> -space <space> -spacedir sphsm<XX> -contrast <1v2> -sf <sessid> -df sesspar
- Repeat isxavg-re-sess for all contrasts.
- Assign the name of the group analysis with the <group> parameter. If the analysis is in TalairachSpace then <space> = tal. If the analysis is in SphericalSpace, then <space> = sph, and -spacedir must be specified from FsFastSphericalSmooth (sphsmooth-sess).
- paint-sess -analysis <analysis> -contrast <1v2> -subject <subject> -space sph -spacedir sphsm<XX> -isxavg <random|fixed> -s <subject> -df sesspar