Create intermediate indices from vectors of start and stop indices?
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Is there a fast way to create a vector of indices taking as an input two vectors containing the start and stop indices?
I want:
a = [2 7 9 17]; b = [4 7 12 17];
c = fun(a,b) = [2 3 4 7 9 10 11 12 17];
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Image Analyst
on 21 Feb 2012
I guess I'm not following. Which of the 4 elements of a, or the 4 elements of b, or the 9 elements of c represent the start indices, and which represent the stop indices?
Accepted Answer
Jan
on 20 Feb 2012
Are the values always integers? Can the intervals overlap? These details are very important for the implementation.
[EDITED] If the intervals do not touch eachother - in other words: if there is always an element between them:
a = [2 7 9 17];
b = [4 7 12 17];
k(b+1) = -1;
k(a) = 1;
c = find(cumsum(k));
For large arrays it would help to save time, if CUMSUM handle INT8 vectors - unfortunately it doesn't.
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