plot a curve throughout max and min values

Hello everybody,

I have a signal as shown below, I need to plot two curves, one passes the max values of the signal and the other throughout the min values (it likes an envelope for the signal).

Thanks in advance.

Answer 1

[KSSV]

Read about envelope

https://in.mathworks.com/help/signal/ref/envelope.html

[Mohanned Al Gharawi]

I appreciate for your response, I know the envelope command, but what I need is the curve to be more smooth when passes the max and min values like the below.

Thanks