Using convolution to smooth data with a moving average in MATLAB
I teach the introduction to MATLAB classes for all new hires in the Technical Support group at MathWorks. One of the attendees wanted to know how to do a moving average in MATLAB. This can be useful for filtering, or smoothing, noisy data. I realized I had never covered that on the blog, so here we go! I show how to do this from scratch using conv. If you have the Curve Fitting Toolbox, you might want to check out smooth, which adds some fancier smoothing methods.
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