How to ask matlab to find mean only if there are less than 3 NaN values?

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MP 2022-8-5

评论： MP 2022-8-5

How to ask matlab to find mean only if there are less than 2 NaN values in a given column, otherwise it should be NaN?

For Example,

qq = [1 2 3 NaN; 1 NaN NaN NaN];
qqm = mean(qq','omitnan');
qqm
% o/p is Value: [2,1], size: 1x2, Class: Double

I want to find output like:

qqm = [2, NaN]

Any help will be greatly appriciated.

Bruno Luong 2022-8-5

qq = [1 2 3 NaN; 1 NaN NaN NaN];
qqm = mean(qq','omitnan');
qqm(sum(isnan(qq),2)>=2) = NaN;
qqm
qqm = 1×2
     2   NaN

MP 2022-8-5

Thank you so much!

That saved a lot time!!

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