MATLAB: How do you calculate percentage change between sequential elements in array

divisionhyperbolic functionsequential change

I have a 14400×11 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?

Best Answer

X=rand(3,4)
percent_change=diff(X)./X(1:end-1,:)

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MATLAB: Sequential Simulations

Here is my experience in case it is helpful. I have a parameter study with multiple Simulink runs which I execute it from within a Matlab script. For each run, I generate parameters in the workplace, run the simulation, extract desired simulation results, then save a mat file with the results. There is additional scripting at the end to generate comparison plots. As a Simulink beginner who is comfortable with Matlab, I took 1-2 weeks to get the script working well. This is not including time to set up and debug the Simulink model. My colleague, also a Simulink beginner, took about 3 days to get a GUI working on another Simulink application. Hope these time estimates are helpful for planning your approach.

MATLAB: How to obtain the absolute difference between elements in a row

b = abs(diff(a, 1, 2))

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MATLAB: Sequential Simulations

MATLAB: How to obtain the absolute difference between elements in a row

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