Finding the mean of each column of each double within a structure

Hello! I would like to find the mean of each double within this structure (named beh_data). Each double contains 4 columns. I would like to have the mean of each column (ideally the 2nd, 3rd and 4th column only), for each double.

I have tried various things eg:

MeanMovementPerTrial = [];

for i = 1:length (beh_data)

MeanMovementPerTrial(i) = structfun (@mean,beh_data.data(i),'UniformOutput',false);

end

Or even simpler stuff, but I keep getting different errors. Do you know how I can do this? Thank you =)

[David Hill]

We would be better able to help you if you attached your data.

Answer 1

[dpb]

Something like

M=arrayfun(@(s)mean(s.Data(:,2:end)),beh_data,'UniformOutput',0).'; % calculate the means
M=cellfun(@(c)struct('Means',c),M,'UniformOutput',1);               % put them in a new struct array

Use arrayfun to iterate over the struct array, returning a cell array of the means. Then convert those to a new struct array by operating on each via cellfun.

If one were really a glutton for trying to play "MATLAB golf", see if can figure out and keep straight doing both in one line... :)

[Tanika Bawa]

Wowwww thank you so much! Works like a charm =D