Find area under curve of every n rows

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David du Preez
David du Preez 2017-5-18
评论： KSSV 2017-5-18
Hi. I have a 648 x 14 matrix. I want to calculated the area under the curve of every 24 values created by the values in column 5. I can do this within a loop but I want to perform the same function on different matrices with a varying number of rows. Is it possible to do this without a loop
for i = 1:27
area(i,1) = trapz(MAM10(24*i-23:24*i,5));
end

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采纳的回答

Walter Roberson
Walter Roberson 2017-5-18
trapz( reshape(MAM10(:,5), 24, []) )

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