What did i do wrong in this code when i calculate the average of all the run

I run 9 sets of data and try to take the average of 9 sets. I calculate the mean but it shows the mean equals to the last set of data (set 9). It does not calculate the mean at all. Li is a matrix 101 x 9

for nrun = 1:9

% Calculate each Li

 Li(:, nrun) = ........

 LMean= mean(Li(:,nrun),2)

end

Did I code it wrong? Please helps

Thanks

[Walter Roberson]

Please restore the question so that others may learn from it.

[Randy Souza]

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Answer 1

[Walter Roberson]

You are overwriting LMean on each iteration through the loop.

You could delay the mean() call until after the loop, and then use

LMean - mean(Li,2);

This would be for calculating the 101 x 1 mean (mean of each point across the datasets.) If you were looking for the 1 x 9 mean (mean of each dataset) it would be

LMean = mean(Li);