It appears to me that adding -BminusA to a 3dttest++ command using -singletonA has no effect on the output volume, even though the text output of the program says “results are SetB - sngltnA”. Can you reproduce this? my commands were:
3dttest++ -singletonA stats.p1+tlrc’’ -setB “stats.s*HEAD” -prefix PvsC
3dttest++ -singletonA stats.p1+tlrc’’ -setB “stats.s*HEAD” -BminusA -prefix PvsC_BminusA
For me, there is no different in the output volume. In the meantime I can use 3dcalc to get the file in the other direction but thought it might be useful to point this up.
Thanks in advance.