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Topic: match matrix to closest values
Replies: 5   Last Post: Jun 16, 2013 3:34 AM

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Posts: 2
Registered: 6/9/13
match matrix to closest values
Posted: Jun 9, 2013 6:50 PM
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Here's a function I wrote. It creates a matrix with the same dimensions as 'needle', placing in each element the closest value from 'haystack':

function [val] = closest(haystack, needle)
[~, i] = min(abs( ...
repmat(reshape(haystack,numel(haystack),1),1,numel(needle)) - ...
repmat(reshape(needle,1,numel(needle)),numel(haystack),1) ...
), [], 1);
val = reshape(haystack(i), size(needle));

I'd appreciate suggestions & improvements.

-- kwikwag

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