indexing a set in an array
2 views (last 30 days)
Show older comments
Dear users, Im trying to find a fast way to index a set of elements of an array that meet some criteria. For instance, Imagine that I have an array A=zeros(Nx,Ny) Nx=1000;Ny=1000. so A(k,l)=0 for all k,l<1000. Now I would like the set of indices, call them SET, that fullfill (k-ko)^2+(l-lo)^2<R^2 From which I can A(SET)=1. In this way with any given distance function I can build indicator functions for arbitrary sets.
4 Comments
Accepted Answer
More Answers (0)
See Also
Categories
Find more on Data Type Conversion in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!