Mean of each Value in a Cell Array

Question

Fabio Taccaliti 2022-7-8

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1756080-mean-of-each-value-in-a-cell-array

评论： Voss 2022-7-8

采纳的回答： Voss

Hello,

I havea cell A (107x3), with each 14x8 double.

I want to create a cell A_mean 1x3 that just contain three 14x8 doubles, that are the mean of all the value.

I mean, A_mean{1,1}(1,1) should be the mean(A{1,1}(1,1),A{2,1}(1,1)...A{107,1}(1,1)), and the same for all the others numbers.

I really don't know how can I do it..

Thanks in advance :)

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Answer 1

Voss 2022-7-8

1
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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1756080-mean-of-each-value-in-a-cell-array#answer_1003185

在 MATLAB Online 中打开

% a cell A (107x3), with each 14x8 double
A = arrayfun(@(~)randn(14,8),zeros(107,3),'UniformOutput',false)
A = 107×3 cell array
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
    {14×8 double}    {14×8 double}    {14×8 double}
% I want to create a cell A_mean 1x3 that just contain three 
% 14x8 doubles, that are the mean of all the value
N = size(A,2);
A_mean = cell(1,N);
for ii = 1:N
    A_mean{ii} = mean(cat(3,A{:,ii}),3);
end
disp(A_mean);
    {14×8 double}    {14×8 double}    {14×8 double}