How many positive entries in array

2012 4 1
3 个回答
回答已采纳
更新时间：2026 7 7
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1 个投票

I have a 1450x1 array. I want to count how many positive entries in array?

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Wayne King
Wayne King 2012-4-1

3 个投票

x = randn(1450,1);
indices = find(x>0);
length(indices)
or
count = length(nonzeros(x(x>0)));

更多回答（2 个）

hidayet beyhan
hidayet beyhan 2020-3-28
编辑：hidayet beyhan 2020-3-28

1 个投票

Or you can use for an array:
x = randn(1450,1);
sum(x>0)
Varshitha Gouri
Varshitha Gouri 2026-7-7，3:53

0 个投票

function count = positiveEntries(arr)
count = sum(arr > 0);
end

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