How to take Mean of cell array ?

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Joana 2020-4-17

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/518657-how-to-take-mean-of-cell-array

评论： Ameer Hamza 2020-4-17

Hi

I have a struct variable A with 1x15 cell, where each cell array is of variable size in it's 1st dimension and other two dimensions are fixed. i.e dimension of 1st cell array is 200x1x120 and of 2nd it is 120x1x120, I want to take the mean of all the cell arrays in variable A How i can do that please.?

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Answer 1

Ameer Hamza 2020-4-17

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/518657-how-to-take-mean-of-cell-array#answer_426605

在 MATLAB Online 中打开

See cellfun(): https://www.mathworks.com/help/matlab/ref/cellfun.html

A_averaged = cellfun(@(x) mean(x, 'all'), A);

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Joana 2020-4-17

Thanks Ameer for your reply.

What is 'x' in this case.?

Ameer Hamza 2020-4-17

在 MATLAB Online 中打开

'x' is the variable of anonymous function. This has no effect if there is an x defined in your code. The scope of this 'x' is just inside the anonymous function.

@(x) mean(x, 'all')

cellfun takes each element of cell array A and applies the anonymous function on it.

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