Find and summarize values in matrix WITHOUT loop

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Sebastian Daneli
Sebastian Daneli 2020-3-11
评论： Sebastian Daneli 2020-3-11
Let's say that I have a matrix M=[1 2;1 1], and I need to find all the 1:s in each culumn, and then summerize them in a vector as v=[2 1]. Is this possible without a loop?

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Ameer Hamza
Ameer Hamza 2020-3-11
M=[1 2;1 1];
sum(M==1,1)

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