[Mne_analysis] Cropping epoch to pre stimulus event

[Alexandre Gramfort]

        External Email - Use Caution        

hi,

this looks correct to me.

Alex

On Mon, Nov 2, 2020 at 7:44 AM <balandongiv at gmail.com> wrote:
>
>         External Email - Use Caution
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> Dear Group,
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>
>
> I had epoch a continuous signal into -0.7s and 0.7s relative to the stimulus. Along the pipeline, there is a step to evaluate only the signal from -0.7s-0s. I would like to confirm whether epochs.crop() is the right function for this?
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> The code snippet is as below.
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> sample_data_folder = mne.datasets.sample.data_path()
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> sample_data_raw_file = os.path.join(sample_data_folder, 'MEG', 'sample',
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>                                     'sample_audvis_raw.fif')
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> raw = mne.io.read_raw_fif(sample_data_raw_file, verbose=False,preload=True).crop(tmax=60)
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> events = mne.find_events(raw, stim_channel='STI 014')
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> epochs = mne.Epochs(raw, events, tmin=-0.7, tmax=0.7,preload=True)
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> pre_stim_epochs = epochs.copy().crop(tmin=-0.7, tmax=0, include_tmax=True)
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> Thanks for the time entertaining this question
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>
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> Regards
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> Rpb
>
>
>
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