RMS of sampled signal

I have a signal sampled at 5000 samples per second . and I have 5 second . plz help me to find the RMS value of the ac component of the waveform of this signal

Answer 1

[Walter Roberson]

ac_signal = YourSignal - mean(YourSignal(:));
rms = sqrt( mean(ac_signal.^2) );

[dpb]

Stumbled on this from suggested links -- beginning with R2012a the Signal Processing TB contains rms which was subsequently moved into MATLAB proper with R2022a.