[Mne_analysis] Error in combining edf files

[Senaka Amarakeerthi]

Hi,

I am trying to combine two edf files with the following code,

raw0 = mne.io.read_raw_edf('file1', preload=True)
raw1 = mne.io.read_raw_edf('file2', preload=True)

raw = raw0.append(raw1)

When I try to plot 19th channel with the following code,

data = raw[:, :][0]
plt.plot(data[19])
plt.show()

Following set of error comes

TypeError                                 Traceback (most recent call
last)<ipython-input-214-345e58904e3a> in <module>()----> 1 data =
raw[:, :][0]      2 plt.plot(data[19])      3 plt.show()
TypeError: 'NoneType' object is not subscriptable



What is wrong with my code?




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