[Eeglablist] Using large datasets in EEGLab

Elin-Merethe Lilleng elinmel at stud.ntnu.no
Wed Nov 23 09:17:56 PST 2005


Hi,

I`ve run into the same problem ("Out of Memory" error message) when
trying to run ICA on a file with 128 channels. I then "asked" Matlab
about the prblem, and got the answear that I could use the "PACK
command", my problem is that I don`t know where to use this command; is
it in matlab (didn`t work by typing it...) or is it in Eeglab? Does
anyone know how to do this?

What I did find in Eeglab was a function under "File" named "Maximize
memory", tried this, but it didn`t help!

Is there anyone out there who knows how much memory is needed to run ICA
on 128 and 256 chanel data, the datasets are from 120 000 kB - 400 000
kB?

I`m using Windows XP on a 1,5 GHz portable PC with 1.2GB of RAM.

Thanks, Elin


Sitat Patrick Craston <pc52 at kent.ac.uk>:

> Hi,
>
> I am trying to load and merge rather large datasets (about 100MB
> each)
> using EEGLab. Currently I have 4 datasets that are to be merged into
> one, but this number will increase with the progress of my EEG
> experiments.
>
> The problem is I get a 'Out of Memory' error message whenever I try
> to
> merge the datasets.
>
> I am using Windows XP Pro on a 3.2GHz PC with 1GB of RAM.
>
>
> Does anyone know of a solution? Surely Matlab should be able to
> handle
> files of that size.
>
> Or can EEGLab be configured to compress data during merging, for
> instance using PACK?
>
>
> Thanks for your help.
>
> Patrick
>
> --
> Patrick Craston
> Computing Lab, University of Kent, Canterbury, CT2 7NF, UK
> http://www.cs.kent.ac.uk/~pc52
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