Need to determine the fraction of a matrix of ones and zeroes that are zeroes

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DJ V
DJ V 2016-11-13
回答： Steven Lord 2016-11-14
I need to determine the fraction of a matrix of ones and zeroes that are zeroes.
My code is:
function y = zero_stat(Y)
K=mean(Y');
[x,y] = size(Y');
r = mean(Y',y);
s = sum(r);
y=(1-s)/y)*100;
end
IF 40% of the matrix is comprised of zeroes, the function is to return 40.

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采纳的回答

Walter Roberson
Walter Roberson 2016-11-13
mean(Y(:)) * 100

更多回答（1 个）

Steven Lord
Steven Lord 2016-11-14
Get the number of nonzeros using nnz and the total number of elements using numel.

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