[FieldTrip] Installation- Unrecognized function?

[Schoffelen, J.M. (Jan Mathijs)]

Hi Karen,


with overloaded, I mean that there are more functions with the same name. isfield is a built-in matlab function, and it typically does not return an error with a specified line (which is opposed to what was suggested by your pasted error message).

I think the best way forward, would be to change into the directory of your downloaded fieldtrip version, and then try ft_defaults, after you have typed restoredefaultpath.

Best wishes,
JM




On 23 Oct 2020, at 17:44, Karen Konkoly <karenkonkoly at gmail.com<mailto:karenkonkoly at gmail.com>> wrote:

Hi Jan-Mathijs,

Thanks for your response! The first part of the error was "Index exceeds the number of array elements (0)." And there were a bunch of warnings before it. What do you mean by overloaded version? I just searched my computer, and it seems that this might also be a function in eeglab. What do you think I should do in that case? I tried taking eeglab off my path, but I still got the same error.

Best,
Karen

On Fri, Oct 23, 2020 at 10:22 AM Schoffelen, J.M. (Jan Mathijs) <jan.schoffelen at donders.ru.nl<mailto:jan.schoffelen at donders.ru.nl>> wrote:
Hi Karen,

The error message you pasted is incomplete it seems, so it is not clear from a distance what went wrong. Do you by any chance have an overloaded version of an isfield.m function on your matlab path?

Best wishes,
Jan-Mathijs


> On 23 Oct 2020, at 05:08, Karen Konkoly <karenkonkoly at gmail.com<mailto:karenkonkoly at gmail.com>> wrote:
>
> Hi,
>
> I have downloaded fieldtrip and copied the folder into my matlab folder, and added the "fieldtrip toolbox" folder to my path (but not subfolders, as I read that they would be opened individually, as needed).
>
> But, when I try to run ft_defaults to continue the installation, I get the following error:
>
>  "Error in isfield (line 26)
> y = isfield(x(1).value, key);
>
> Error in ft_defaults (line 94)
> if ~isfield(ft_default, 'trackconfig'),       ft_default.trackconfig
> = 'off';      end % cleanup, report, off"
>
> And the other functions of fieldtrip do not work (I am trying to use freqanalysis). Does anyone know how I can fix this?
>
> Best,
> Karen
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> https://doi.org/10.1371/journal.pcbi.1002202


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