Dear All,

I was trying to run 3dMEMA to compare two different groups, using the following lines of code, but when I plot the output in the AFNI GUI no activation is observed:
3dMEMA -prefix G1_G2_COMPARE \
-jobs 1 \
-groups G1 G2 \
-set G1 \
s305 stats.s305+tlrc'[7]' stats.s305+tlrc'[8]' \
s307 stats.s307+tlrc'[7]' stats.s307+tlrc'[8]' \
s308 stats.s308+tlrc'[7]' stats.s308+tlrc'[8]' \
s309 stats.s309+tlrc'[7]' stats.s309+tlrc'[8]' \
s315 stats.s315+tlrc'[7]' stats.s315+tlrc'[8]' \
s317 stats.s317+tlrc'[7]' stats.s317+tlrc'[8]' \
s319 stats.s319+tlrc'[7]' stats.s319+tlrc'[8]' \
s322 stats.s322+tlrc'[7]' stats.s322+tlrc'[8]' \
s323 stats.s323+tlrc'[7]' stats.s323+tlrc'[8]' \
s324 stats.s324+tlrc'[7]' stats.s324+tlrc'[8]' \
-set G2 \
s103 stats.s103+tlrc'[7]' stats.s103+tlrc'[8]' \
s107 stats.s107+tlrc'[7]' stats.s107+tlrc'[8]' \
s109 stats.s109+tlrc'[7]' stats.s109+tlrc'[8]' \
s110 stats.s110+tlrc'[7]' stats.s110+tlrc'[8]' \
s112 stats.s112+tlrc'[7]' stats.s112+tlrc'[8]' \
s113 stats.s113+tlrc'[7]' stats.s113+tlrc'[8]' \
s114 stats.s114+tlrc'[7]' stats.s114+tlrc'[8]' \
s115 stats.s115+tlrc'[7]' stats.s115+tlrc'[8]' \
s116 stats.s116+tlrc'[7]' stats.s116+tlrc'[8]' \
s117 stats.s117+tlrc'[7]' stats.s117+tlrc'[8]' \
-HKtest \
-model_outliers \
-unequal_variance \
-residual_Z \
-covariates CovFile.txt \
-covariates_model center=different slope=same

I have a .txt file as the CovFile.txt containing two columns, one of them is labeled 'name' and contains subject IDs, and the other one is named 'gender' and is coded either 0 or 1. I did not use the 3dREMLfit, to obtain the coefficients and their t-stats. [7] and [8] refer to the coefficients and the t-stats for each individual.

I would be grateful if I could ask about your insight about why the output might be empty.

Thank you so much.
Sanaz



Edited 5 time(s). Last edit at 05/23/2019 10:15AM by Sanaz_khosravani.