how to find out how many columns have more than 50 elements which are greater than 1?

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Yuchen Song
Yuchen Song 2019-10-15
评论： Yuchen Song 2019-10-15
I currently have a matrix that's 100*100 size, and I wish to work out how many columns have more than 50 elements which are greater than 1. Is it possible to do it using only rudimentary functions like find(), mod(), length(), numel(), etc?

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KALYAN ACHARJYA
KALYAN ACHARJYA 2019-10-15
编辑：KALYAN ACHARJYA 2019-10-15
I currently have a matrix that's 100*100 size, and I wish to work out how many columns have more than 50 elements which are greater than 1
Lets say matrix 100*100 named as data
idx=data>1;
result=sum(idx);
data2=result>50;
fprintf('The column number is: %d',sum(data2(:)));

更多回答（1 个）

TADA
TADA 2019-10-15
x = rand(100) * 2;
atLeast50 = sum(x > 1, 1) > 50;

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