REST GCA multivariate coefficient results

Dear experts,

I would like to know how to understand and use the results of multivariate coefficient of GCA. I choose the ROI mode.

There are two kinds of .txt in the result folder

1) GCA_sub_*_order1. txt, what is the means of matrix in the text?what is the mean of every columns and rows?

2) ROI_GCA_sub_*.txt, what is the means of matrix in the text?wha is the mean of every columns and rows?

3) How to do statistic analysis with these .txts?

Thanks a lot!

Best wishes,

Lotus