Plot data after applying a filter


I have an EDF file.
Let’s say that I apply a notch filter to the data.
How can I plot the data after the notch filter? Do I need to create a new .fif flie and plot them then?


No. You load the data with, which will give you a Raw object, e.g. named raw. Then you filter that object in-place with raw.filter(), and then you can do raw.plot().

Thank you very much!