[FieldTrip] Tutorial error

[jan-mathijs schoffelen]

Dear Davide,

I am not sure whether you are using the same fieldtrip version. There  
has been a glitch recently with the trialfun_general, but this should  
be fixed by now. Could you update to a superrecent version of  
fieldtrip and try again?

Thanks,

Jan-Mathijs

PS: I cannot reproduce your error so I expect it to go away if you  
update.

On May 18, 2011, at 10:51 AM, Davide Rivolta wrote:

> Dear all,
>
> I am a very beginner with fieldtrip.
>
> I have tried to run the tutorial a couple of weeks ago, and it  
> worked smoothly.
>
> Yesterday I have tried again, but surprisngly I got anerror message,  
> as soon as I started the tutorial (the first step entitled: "reading  
> and processing the interesting trials"):
>
>
> cfg                                = [];
> cfg.dataset                    = 'Subject01.ds';
> cfg.trialdef.eventtype      = 'backpanel trigger';
> cfg.trialdef.eventvalue     = 3; % the value of the stimulus trigger  
> for fully incongruent (FIC).
> cfg.trialdef.prestim         = 1; % in seconds
> cfg.trialdef.poststim       = 2; % in seconds
>
> cfg = ft_definetrial(cfg);
>
>
> ??? Attempt to reference field of non-structure array
>
> Error in ==> trialfun_general at 117
> for i=find(strcmp(cfg.trialdef.eventtype, {event.type}))
>
>
>
>
> This sounds really weird since it worked 2 weeks ago on the same  
> machine and with the same version of Fieldtrip.
>
> Any advice would be very appreciated.
>
> Best wishes,
>
> Davide
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> fieldtrip at donders.ru.nl
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Dr. J.M. (Jan-Mathijs) Schoffelen
Donders Institute for Brain, Cognition and Behaviour,
Centre for Cognitive Neuroimaging,
Radboud University Nijmegen, The Netherlands
J.Schoffelen at donders.ru.nl
Telephone: 0031-24-3614793