[Eeglablist] Question regarding use of interpolation function

[Tsuboyama, Melissa]

Thanks Steve.  I ended up using a command, though it was:
EEG = pop_interp(EEG, eeg_mergelocs(ALLEEG.chanlocs), 'spherical'); Do you know what the difference is between this and what you get using the command line you mentioned?

Melissa

________________________________
From: Stephen Politzer-Ahles [politzerahless at gmail.com]
Sent: Wednesday, April 04, 2012 2:57 PM
To: Tsuboyama, Melissa
Cc: eeglablist at sccn.ucsd.edu
Subject: Re: [Eeglablist] Question regarding use of interpolation function

Hi Melissa,

I generally interpolate using the eeg_interp() command, so I'm not familiar with the GUI version. To use it from the command line, just load up your data and make sure it's the active dataset, then at the command line type:

EEG = eeg_interp( EEG, [channels] )

where [channels] is a list of one or more bad channel numbers to interpolate.
Then, save the dataset again.

Best,
Steve Politzer-Ahles

On Wed, Apr 4, 2012 at 11:01 AM, Tsuboyama, Melissa <mtsuboyama at urmc.rochester.edu<mailto:mtsuboyama at urmc.rochester.edu>> wrote:
Hello,

I am very new at using eeglab.m. I have been having difficulty interpolating the data from each of my datasets (being performed one dataset at a time) for the bad channel I have removed.  I have already performed low and high pass filters (not simultaneously), removed large artifacts and ran ICA twice (with the second time being after rejecting some data but not removing components).

I have been trying to use the "Interpolate electrodes" automated function from the "Tools" menu.  I loaded the original EEG data file and removed VEOG and HEOG and put in appropriate channel locations.  This was my second, reference dataset.  When prompted, I click on "Use list of other dataset" which then prompts me to enter "dataset index".  I am not sure to what this is referring.  Is this the bad channel (using the second dataset as the reference) that I would like to be interpolated around/for?  What is the format I need to use to input the dataset index?

Thanks!

Melissa

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--
Stephen Politzer-Ahles
University of Kansas
Linguistics Department
http://www.linguistics.ku.edu/
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