Using GLM, statistical model (e.g. box-car) can be fit to the averaged time
series ROI data of each subject and the percent of variance accounted for
(PVA) can be calculated. The PVA is the same value as the R2 value obtained
from correlation analyses between the model and actual time series data.
I'm wondering if any one can instruct me how to obtain the PVA or R2 value
directly or indirectly from SPM5.
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