[Eeglablist] Time Warping

[Makoto Miyakoshi]

Dear Fiorenzo,

I would appreciate your comments on this.

Makoto


On Mon, Jun 9, 2014 at 1:58 PM, Srinivas Kota <svkota at gmail.com> wrote:

> Hello
>
> I am trying to implement to remove gait related movement artifacts. In
> this paper, it was mentioned authors implement a linear time warping method
> with 20 neighboring epochs.
>
> http://sccn.ucsd.edu/~klaus/pubs/GwinGramannMakeigFerris2010.pdf
>
> I am not sure I clearly understood how to use 'timewarp' function in
> EEGLAB.
> warpmat = timewarp(evlatency, newlatency)
>
> % In 10-frame vectors, warp frames 3 and 5 to frames 4 and 8,
>  % respectively. Generate a matrix to warp data epochs in
>  % variable 'data' of size (10,k)
>        >> warpmat = timewarp([1 3 5  10], [1 4 8 10])
>        >> warped_data = warpmat*data;
>
> How do I write these two lines of code, if I need to timwarp an epcoh with
> 20 neighboring epochs?
>
> Srini
>
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-- 
Makoto Miyakoshi
Swartz Center for Computational Neuroscience
Institute for Neural Computation, University of California San Diego
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