# Pulling epoched data from specific vertices

**URL:** <https://mne.discourse.group/t/pulling-epoched-data-from-specific-vertices/154>\
**Category:** Mailing List Archive (read-only)\
**Tags:** list-archive\
**Created:** [August 26, 2009, 12:26pm UTC](https://mne.discourse.group/t/pulling-epoched-data-from-specific-vertices/154 "2009-08-26T12:26:50Z")\
**Posts on this page:** 2\
**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:** [August 26, 2009, 12:26pm UTC](https://mne.discourse.group/t/pulling-epoched-data-from-specific-vertices/154/1 "2009-08-26T12:26:50Z")

</div>

Hi MNE users,

I have 40 ROIs with which I am trying to run a single-trial granger  
causation analysis on. Instead of pulling all of the data from each  
ROI, I am hoping to find a command that will return the vertices list  
within an ROI. Is there such a command? In addition, is there a  
command that will return the epoched data from a vertices list after  
specifying the condition? Originally I was using  
mne\_compute\_raw\_inverse specifying an ROI and then mne\_epochs2mat to  
pull the data. But, it will be much more efficient if I can just input  
the vertices that I need. Thanks in advance.

Best,  
Corey

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<div class="post-metadata">

**Author:** ![system](https://global.discourse-cdn.com/free1/uploads/mne/original/1X/85cc6bd2b69cb698a166dc6d880fb550510d0144.jpeg) [@system](https://mne.discourse.group/u/system)\
**Post date:** [August 26, 2009, 4:36pm UTC](https://mne.discourse.group/t/pulling-epoched-data-from-specific-vertices/154/2 "2009-08-26T16:36:47Z")

</div>

Hi MNE users,

I have 40 ROIs with which I am trying to run a single-trial granger  
causation analysis on. Instead of pulling all of the data from each  
ROI, I am hoping to find a command that will return the vertices list  
within an ROI. Is there such a command? In addition, is there a  
command that will return the epoched data from a vertices list after  
specifying the condition? Originally I was using  
mne\_compute\_raw\_inverse specifying an ROI and then mne\_epochs2mat to  
pull the data. But, it will be much more efficient if I can just input  
the vertices that I need. Thanks in advance.

Best,  
Corey