RMS Function Returns NAN
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Mark Lafrentz
on 11 Jun 2019
Commented: Mark Lafrentz
on 12 Jun 2019
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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Accepted Answer
Greg Dionne
on 11 Jun 2019
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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