Can I plot the mean and mode frequency in an FFT graph?

Hi, I`m doing some frequency analysis of EMG signal, and I plot three moments of the reach movement for three different muscles. I want to know if I can plot in the graphic I`ve got for the FFT the median, mode and mean for each signal.

Thanks in advance,

Jair

Answer 1

[Image Analyst]

What do you mean? You take the time domain signal, and then take the FFT of it so now you have the spectrum. So then you have the 1D spectrum of your signal, and so do you want vertical lines coming up from the frequency axis that indicate which frequency is the mean, median, and mode frequency? You can use the line() function for that, or the plot() function for that. Either will plot a line.

Answer 2

[Walter Roberson]

Yes. You can either use line(), or you can

hold on

and then use plot()

[Image Analyst]

Great minds think alike.