what is the interpretion of this figure

[Maram]

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 ?

[richard (Richard Höchenberger)]

You can try raw_01.plot(scalings="auto"). Do you see a trace now?

[Maram]

@richard

raw_01.plot(scalings="auto")

yes , thank you so much !!

[richard (Richard Höchenberger)]

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