Dear SPM-masters,
I am a Marsbar beginner. I have one question for ROI data extraction. When I
use Marsbar to extract ROIs and save data to the file, the save file
includes many matrix. The first one is Y, and the second one is Yvar. The
first one Y should be the mean of all voxels in the ROI in the time course.
My question is what the Yvar represents, the variance of all voxels in the
ROI in that time? But the data dosen't look like it. Thanks for your
concern!
Best wish,
Weidong Cai
Biopsychology
State University of New York at Stony Brook
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