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