How do you perform correlation coefficient for every ten rows in a specific column of a matrix?

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Chandler Quinn Stokes 2021-6-17

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回答： Vimal Rathod 2021-6-21

I have a somewhat large matrix (685 rows by 12 columns) that I need to take the correlation coefficient over every ten rows of specific columns that I need to specify. Any help would be appreciated.

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Answer 1

Vimal Rathod 2021-6-21

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Hi,

You could use the following snippet to find out correlation coefficient over every 10 rows of some specific column.

r = rand(685,12);
column = 3; % specify the column in which you want correlation coefficient
for i = 1:10:numel(r(:,1))
    if(i+9 < 685)
        b(:,i) = r(i:i+9,column);
    end
end
c = corrcoef(b);