I am trying to plot the signal , raw eeg data .
but I got this figure : what does it means? and why I did not get the whole signals ?
You can try raw_01.plot(scalings="auto"). Do you see a trace now?
yes , thank you so much !!
I assume the scaling of your data is incorrect, then. You should check that before proceeding. MNE expects EEG data in Volts (not µV).
Good luck,
Richard
A post was split to a new topic: how to combine signals?