# mne\_browse\_raw with CTF epoch data

**URL:** <https://mne.discourse.group/t/mne-browse-raw-with-ctf-epoch-data/192>\
**Category:** Mailing List Archive (read-only)\
**Tags:** list-archive\
**Created:** [January 5, 2010, 7:31pm UTC](https://mne.discourse.group/t/mne-browse-raw-with-ctf-epoch-data/192 "2010-01-05T19:31:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [January 5, 2010, 7:31pm UTC](https://mne.discourse.group/t/mne-browse-raw-with-ctf-epoch-data/192/1 "2010-01-05T19:31:19Z")

</div>

Hi,

I'm trying to analyze CTF epoch mode data in MNE (the raw CTF data was not  
recorded for this study, only the epochs). I used mne\_ctf2fiff to convert  
to fif format, and the resulting fif file appears to have the correct  
dimensions when I open it in Matlab. However, I am unable to view the data  
with the mne\_browse\_raw viewer--it opens the file without complaint, but  
the viewer is blank and does not display the sensor labels. This seems to  
be true whether I convert and view the dataset as 'raw' data, or as evoked  
data--there again the average viewer window opens but is blank.

I was wondering if anyone else who has been analyzing CTF data in MNE  
might have advice?

Thanks!  
Ellen