smoothing the numerical data

Questions
, ,
1

I am beginner on mathematica.
I want to smooth the numerical data using the Digital Butterworth Filter.
What should I do?
I think use “ButterworthFilterModel”, “ToDiscreteTimeModel” and “OutputResponse”.
I Don’t know exactly how to implement these functions.

2

Did you check help?

3

thank you for your reply.
I checked the help, and these functions work.
thank you.