How do I Vectorize the for loop containing if else ?

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mezali zineb
mezali zineb 2022-12-27
编辑： Voss 2022-12-29
for j=1:n
for i=1:m
if xH(i,j)>0
X1(i,j)=xH(i,j);
X2(i,j)=xH(i,j);
end
end
end
for j=1:n
COUNTcol=0;
for i=1:m
if X1(i,j)>0
COUNTcol=COUNTcol+1;
end
end

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采纳的回答

Voss
Voss 2022-12-27
X1 = zeros(size(xH));
X2 = zeros(size(xH));
idx = xH > 0;
X1(idx) = xH(idx);
X2(idx) = xH(idx);
COUNTcol = sum(X1 > 0, 1);

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