Hi AFNI experts,
I am not quite sure how the "maximum pairwise displacement" is calculated in "1d_tool.py", please see if my understanding is correct. Suppose we have only 3 time points and the 6 head motion parameters at each time points are (a1, b1, c1, d1, e1, f1), (a2, b2, c2, d2, e2, f2), (a3, b3, c3, d3, e3, f3). So the "maximum pairwise displacement" is calculated as this:
max( abs(a1-a2), abs(a1-a3), abs(a2-a3), abs(b1-b2), abs(b1-b3), abs(b2-b3), ..., abs(f1-f2), abs(f1-f3), abs(f2-f3) )
Am I correct? Thank you so much!
