[FieldTrip] help about ft_timelockanalysis

[Stephen Politzer-Ahles]

Hello Xiao,

I don't know if this is what is causing the error, but I did notice that
your dataset apparently only has one trial. Usually ft_timelockanalysis()
would take a dataset consisting of multiple trials and average them; you
may need to run ft_preprocessing() to divide your dataset into trials.

Best,
Steve



>
> Message: 1
> Date: Sun, 19 May 2013 15:32:37 +0800
> From: ?? <mengtongxiao at gmail.com>
> To: fieldtrip <fieldtrip at science.ru.nl>
> Subject: [FieldTrip] help about ft_timelockanalysis
> Message-ID:
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CADiddyWhMO7vgM2ZjV8xABCVe8WS4d2eXNwvY92hcj2oA0piFQ at mail.gmail.com>
> Content-Type: text/plain; charset="gb2312"
>
> Dear all?
> when I use ft_timelockanalysis like follow,there are some mistake.
>
> cfg                   = [];
> cfg.covariance        = 'yes';
> cfg.channel           = 'all';
> cfg.vartrllength      = 2;
> cfg.covariancewindow  = 'all';
> timelock              = ft_timelockanalysis(cfg, data_org);
> the input is raw data with 102 channels and 1 trials
> averaging trials
> averaging trial 1 of 1
>
> the call to "ft_timelockanalysis" took 5 seconds
> ??? Error using ==> mxSerialize
> Error during serialization of (null)
>
> Error in ==> ft_postamble_provenance at 76
>   cfg.callinfo.outputhash = cellfun(@CalcMD5, cellfun(@mxSerialize,
>   cellfun(@eval, ft_default.postamble, 'UniformOutput', false),
>   'UniformOutput', false), 'UniformOutput', false);
>
> Error in ==> ft_postamble at 55
>   evalin('caller', ['ft_postamble_' cmd]);
> Error in ==> ft_timelockanalysis at 401
> ft_postamble provenance timelock
>
> Thank you so much for your help!!
> xiao
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--
Stephen Politzer-Ahles
University of Kansas
Linguistics Department
http://people.ku.edu/~sjpa/
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