Tuesday 29 January 2013

Functional programming in Matlab

I came across a very interesting blog post recently. I'll just link it here so you can read it at the source. But to give you a cliffhanger, how would you write a min_and_max function in Matlab, that does this:

[extrema, indices] = min_and_max(y);

You could write an m-file but the alternative is the following mind-blowing and very clever one-liner:

min_and_max = @(x) cellfun(@(f) f(x), {@min, @max});

I love it. Check out the original blog post on Loren on the Art of Matlab for an explanation on how it works.

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