History of AFNI updates  

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January 17, 2017 10:33AM
That is not quite correct. Distances are taken to be
Euclidean (sqrt of sum of squared differences).

The maximum pairwise displacement from 1d_tool.py is
computed as follows. Let the distance between any two
time points be the Euclidean distance of the motion
parameters in 6 dimensions (sqrt(sum squares of 6 diffs)).

The help shows how to understand this in 1 dimension
just as a simple example (where Euclidean dist is the
same as abs(diff)). But that does not extend to the
6 dimensional space.

See also "gen_ss_review_scripts.py -help_fields".

- rick
Subject Author Posted

maximum pairwise displacement

Zhihao_Li January 15, 2017 09:01AM

Re: maximum pairwise displacement

rick reynolds January 17, 2017 10:33AM