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Douglas
Posts:
3
Registered:
11/26/13


Vector Coding
Posted:
Nov 26, 2013 10:00 AM


Roger, I am trying to conduct an analysis of coordination between two adjacent segments called Vector coding (Chang et al., 2008; Journal of Biomechanics). The coupling angle is defined as the inverse tangent of the change in y divided by the change in x (see code below). However, I cannot condition my data such that I avoid the vertical asymptotes of the atan2 function. Can you please offer some suggestions.
x and y are single column arrays with length m.
[m,n]=size(x);
for i=1:m1 gamma=atan2((y(i+1)y(i))/(x(i+1)x(i))) end



