how to calculate mean of cell arrays within cell array

Dear,

I have "T_mon" which is 1X12 cell array (January to December). Each column includes another cell array (1x13), (1x12),...(1x11). For every column in 1X12 cell array, I want to get mean of T_mon{1, 1}, T_mon{1, 2} ... up to T_mon{1, 12}, to be a double within a cell 1x12. How can I do this?

This cell within the cell is coming from this piece of for loop I wrote. It might not be very clever way of doing this.

for i = 1 : 12
    A = T_mon{i};
    T_mean{i} = cellfun(@(x) nanmean(x,2), A,'UniformOutput',false);
end

[Rik]

So what data do you want to get the mean from? Can you show a small example? Do you want to calculate the mean of all values in T_mon{1}?

Answer 1

[Mario Malic]

You will need to have two loops, looping over i and j.

for i = 1:length(T_mon)
    for j = 1:length(T_mon{1,i}) 
        M(i,j) = mean(T_mon{1,i}{1,j});
    end
end

I noticed that there are cells that have different sizes, so I included that with length.

[Farshid Daryabor]

Dear Mario,

T_mon= {cell_1,cell_2,...,cell_12};

and for instance,

cell_1 = {double_1,double_2,double_3};

I want to get mean of three double arrays mean(cell_1), i.e., ((double_1+double_2+double_3)./3) to be one double(n*1) and so for others, cell_2,cell_3,...cell_12

eventually I would to have a Matrix double M*12, which 'M' is size of elements of (mean(cell_1), mean(cell_2),...mean(cell_12))

[Farshid Daryabor]

It is what I expacted

for jj = 1 : length(T_mon)

A = T_mon{jj};

N = cellfun(@numel, A);

M = max(N);

A_new = cell2mat(cellfun(@(x) [x; nan(M - numel(x),1)],A,'uni',0));

B = nanmean(A_new,2);

C{jj}=B;

end

[Mario Malic]

for i = 1:length(T_mon)
    for j = 1:length(T_mon{1,i}) 
        M(i,j) = sum(T_mon{1,i}{1,j});   
    end
end

A = nanmean(M,2); % mean value of rows
A = A'

I hope I understood well what you wanted.

Edit: didn't know that 'nanmean' existed.