What is difference between matlab rms() and File Exchange Signal rms()

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Ted H 2023-8-2

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https://ww2.mathworks.cn/matlabcentral/answers/2003692-what-is-difference-between-matlab-rms-and-file-exchange-signal-rms

编辑： Stephen23 2023-8-2

采纳的回答： Cris LaPierre

I (think I) am using Signal rms from File Exchange. I downloaded this and put it in my path.

Matlab also has an rms function (Matlab rms).

Both are called as y=rms(...).

How does Matlab know which one to use?

The editor window helper shows the syntax for the Matlab version. I put in values for the Signal rms version and do not get an error, and putting in the wrong number of parameters yeilds an error consistent with Signal rms. So I am using the Signal rms version.

Signal rms requires:

y = rms(signal, windowlength, overlap, zeropad)

Matlab function requires:

y = rms(x)

y = rms(x,"all")

y = rms(x,dim)

y = rms(x,vecdim)

y = rms(___,nanflag)

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Stephen23 2023-8-2

编辑：Stephen23 2023-8-2

Note: by far the simplest and most robust solution to ensuring that you know exactly which function you are calling is to give the function a unique name. Simply rename it to "SigRMS" or similar ... and the entire problem goes away.

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