How to find a row that have maximum mean value in 2D array?

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minsoo kim 2017-12-2

评论： KL 2017-12-3

Let's say I have a 2D array S(m,n).

What I want to do is to find a row that has the biggest mean value. I'll call this row as 'i'th row.

So my matlab code was like this.

[i]=find(S==max(mean(S)));
[i]

But matlab just shows "ans = []" which means, there is something wrong with my code.

The problem is, I have no idea how to fix it.

Any ideas?

KL 2017-12-2

编辑：KL 2017-12-3

You'd need

[maxVal, maxInd] = max(mean(S,2))

mean with parameter 2 calculates mean on the second dimension and then you find the max and it's index.

minsoo kim 2017-12-3

uh....I think there are some mistakes in your code.

maxRow = find(max(mean(S,2)))

This only returns 1.

KL 2017-12-3

You're right, using find wasn't the best choice. You can simply use the second output of max.

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