what is the most efficient way to set several matrix values to zero ?

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N/A 2020-7-9
回答： madhan ravi 2020-7-9
Hello everyone,
I want to know which is the most efficient way to set a lot of matrix values to zero.
I currently have a 90x90x7613 matrix with several numbers inside that should be set to zero (note: not all of them). The values that should be set two zero are stored inside a vector.
My current approach is this:
for i=1:length(vec)
matrix(matrix==vec(i))=0;
end
Is there a more efficient way to do it ?

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madhan ravi
madhan ravi 2020-7-9
matrix(ismember(matrix, vec)) = 0

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