# question about classification between events and normalization
**URL:** https://mne.discourse.group/t/question-about-classification-between-events-and-normalization/1671
**Category:** Mailing List Archive (read-only)
**Tags:** list-archive
**Created:** [December 4, 2018, 7:53pm UTC](https://mne.discourse.group/t/question-about-classification-between-events-and-normalization/1671 "2018-12-04T19:53:13Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@system](https://mne.discourse.group/u/system)
#### Post date: [December 4, 2018, 7:53pm UTC](https://mne.discourse.group/t/question-about-classification-between-events-and-normalization/1671/1 "2018-12-04T19:53:13Z")
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Hi all,
I'm new to MNE Python. I have experience in Tensorflow but for Images
Classification using cnn models.
I have EEG data from Brainvision (.vhdr extension). (31 channels,
sampling rate 500 Hz, High pass filtered at 0.5 Hz). For every trial I
have an EEG dataset, and I have many trials. Each trial is about 2 - 3
seconds and consists of different 5 events. The time period is
different between trials and different between events.
My goal is to make a multi-classifier to distinguish between Events by
using the data from many trials. I looked in the internet but it's
still unclear for me. I have qeustions:
Is there a function that can take the .vhdr files, convert them to
numpy arrays.
Is there a function that can take the files with events, and possibly
cut them into segments and normalize them?
Which classifier would you recommend?
Many thanks in advance for your kind help
---
### Author:  [@system](https://mne.discourse.group/u/system)
#### Post date: [December 4, 2018, 8:19pm UTC](https://mne.discourse.group/t/question-about-classification-between-events-and-normalization/1671/2 "2018-12-04T20:19:32Z")
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> I have EEG data from Brainvision (.vhdr extension).
[snip]
> Is there a function that can take the .vhdr files, convert them to
> numpy arrays.
yes:
# convert brainvision .eeg file to mne.Raw format
---
### Author:  [@system](https://mne.discourse.group/u/system)
#### Post date: [December 5, 2018, 10:10am UTC](https://mne.discourse.group/t/question-about-classification-between-events-and-normalization/1671/3 "2018-12-05T10:10:19Z")
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> Which classifier would you recommend?
>
> You can start with a simple linear classifier such as the logistic
regression:
[https://martinos.org/mne/dev/auto\_tutorials/plot\_sensors\_decoding.html#decoding-over-time](https://martinos.org/mne/dev/auto_tutorials/plot_sensors_decoding.html#decoding-over-time)
JR
> Many thanks in advance for your kind help
>
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