++ 3dRegAna: AFNI version=AFNI_2011_12_21_1014 (Dec 16 2015) [64-bit] ++ Authored by: B. Douglas Ward This program performs multiple linear regression analysis.
Usage: 3dRegAna
-rows n number of input datasets
-cols m number of X variables
-xydata Xn1 Xn2 ... Xnm filename X variables and Y observations
[-diskspace] print out disk space required for program execution
[-rmsmin r] r = minimum rms error to reject constant model
[-flof alpha] alpha = minimum p value for F due to lack of fit
The following commands generate individual AFNI 2 sub**-brick** datasets:
The following commands generate one AFNI ‘bucket’ type dataset:
The mth sub-brick will contain: [-brick m coef k label] kth parameter regression coefficient [-brick m fstat label] F-stat for significance of regression [-brick m rstat label] coefficient of multiple determination R^2 [-brick m tstat k label] t-stat for kth regression coefficient
This program accepts datasets that are modified on input according to the following schemes:
‘r1+orig[3..5]’ {sub-brick selector} ‘r1+orig<100..200>’ {sub-range selector} ‘r1+orig[3..5]<100..200>’ {both selectors} ‘3dcalc( -a r1+orig -b r2+orig -expr 0.5*(a+b) )’ {calculation}
For the gruesome details, see the output of ‘afni -help’.
++ Compile date = Dec 16 2015