åMore than one dataset can be given at the end of the
command line
åMain application of 3dmaskdump
is to dump out the data or functional values that
match an ROI so they can be processed in some other program (e.g., Excel)
åIf -noijk option is omitted, each
output line starts with ijk-indexes (i.e.,
location) of the voxel
íProgram 3dUndump can
be used to create a dataset from a text file with ijk-indexes and dataset values
¥3dROIstats
HProgram to compute average
of voxels from a dataset, using multiple regions selected by a single ROI
dataset
åi.e., you can compute the
mean for several ROIs separately and simultaneously
åThis differs from 3dmaskave because the ROIs within a
single mask are not collapsed and then averaged. Here the averages are done separately for each ROI
within the mask dataset
HAveraging is done over each
region defined by a distinct value in the ROI dataset
å