[Eeglablist] re-concatenating epoched dataset

[Matt Craddock]

Hi Pete,

There's a script on the Erplab website for converting epoched data to 
continuous data that may do the job:

http://erpinfo.org/erplab/erplab-documentation/utilities/epoch2continuous.m/view

Regards,
Matt

On 25/01/2013 18:25, Pete Manza wrote:
> Hi all,
>
> I have fully processed .set files for a STUDY design that were epoched
> around my stimulus -- but unfortunately, for ERSP calculation, the
> epochs do not start early enough behind the stimulus (only -300ms, I'd
> like to go back to -800ms or so).  I did not exclude any of the
> continuous data in my original epoching procedure (i.e., my trials were
> 7300ms long including the ITI, and I epoched from -300 to 7000ms).
>
> Is there a way to re-concatenate all of the trials of epoched data into
> continuous data so I can re-epoch?
>
> Or better yet, is there a way to chop off the last 500ms of each epoch
> and directly append them to the beginning of the following trial?
> Either of these would be a much better option than going back and
> re-doing most of my preprocessing :)
>
> I am not very experienced in matlab, so if anyone is willing to share
> some code I'd greatly appreciate it.
>
> Thanks!
> Pete Manza
> Stony Brook University
> Integrative Neuroscience


-- 
Dr. Matt Craddock

Post-doctoral researcher,
Institute of Psychology,
University of Leipzig,
Seeburgstr. 14-20,
04103 Leipzig, Germany
Phone: +49 341 973 95 44