problem in calculating mean from the required element of matrix??
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I have a matrix mat6 of dimension 1-by-210. j =210. I am applying a threshold condition on mat6 and then i need to calculate the mean of next twenty elements . I want that the mean should be calculated from that first element of mat6 at which threshold condition was met at first time. But it is calculating mean from that last element of mat6 at which the threshold condition was met.
for k = 1:j-20
if mat6(k)>0.5
w=k+20;
mea = sum(mat6(1,k:w))/20;
end
end
can anyone please sort out this problem ??
Thanks
Navneet Nayan
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Jan
2017-5-5
编辑:Jan
2017-5-5
index = find(mat6 > 0.5, 1); % Find 1 index only
mea = mean(mat6(index:index+19));
Consider that index+19 might exceed the data size. Handle this situation e.g. by an error, e.g.:
index = find(mat6 > 0.5, 1);
if index + 19 > size(mat6, 2)
error('Index out of range in mat6');
end
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