RMS Function Returns NAN

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.

Answer 1

[Greg Dionne]

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

[Mark Lafrentz]

You were right. I had one NAN in my data set. Thank you!