How can I filter this figure ?

Hi

How can I filter this figure ?

Please help me

[Guillaume]

What does filtering a figure mean? Possibly you could filter the signal plotted in the figure but even then filter for what? To remove the low frequencies? The high frequencies?

[Mallouli Marwa]

Yes I want to filter the signal plotted in the figure to remove the low and high frequencies.

[Guillaume]

If you remove both low and high frequencies, you're left with nothing at all!

[Mallouli Marwa]

Ok how can I remove low frequencies ?

Answer 1

[Star Strider]

If you have R2018a, use the bandpass (link) function to design a bandpass filter for your signal. Choose the frequencies you wan to retain as the limits of the filter passband. There are also other methods of designing filters in MATLAB.