How do you calculate percentage change between sequential elements in array?

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txvmi07
txvmi07 2014-6-20
评论： txvmi07 2014-6-20
I have a 14400x11 array of values from the output of a hyperbolic function and want to calculate the sequential percentage change from, for example, the first element in the first row and column a(i,j) to the second element in the second row and first column a(i+1,j). How can I do this?

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A Jenkins
A Jenkins 2014-6-20
X=rand(3,4)
percent_change=diff(X)./X(1:end-1,:)

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dpb
dpb 2014-6-20
pct=100*diff(a(:,1))./a(1:end-1,1);

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