RMS Function Returns NAN
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I am using the 'rms' function to calculate root mean squared values. For certain portions of data, the function returns NAN. There is good, non-zero data in the array i'm inputting (2000 data points all non-zero). I know how to calculate rms values myself, but for the sake of learning, i would like to know why this is happening.
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Greg Dionne
2019-6-11
It's likely you have NaN in your input, or your input is an empty vector.
If you wish to exclude NaN values from computation, then you can try:
sqrt(mean(x .* x, 'omitnan'))
Hope this helps,
-Greg
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