Error during 2nd level analysis: Unrecognized function or variable 'matched_data'

[CarlosRR86]

Hello,

First, I wanted to thank you for such a wonderful toolbox.

I am having some troubles when trying to analyze my data. I followed Makoto's pre-processing pipeline (https://sccn.ucsd.edu/wiki/Makoto's_preprocessing_pipeline), then I created a study with the datasets already processed, and followed the LIMO tutorial for preparing the analyses.

Two errors have appeared:

• The first one, during Estimate Model Parameters (channels); just at the end, the following message appears:

"File name required to save the study, (Error occurred in function pop_savestudy() at line 116)"

• However, I can continue with the 2nd level analysis. The problem is that, after inserting all the relevant information (e.g., number of groups, etc.), before asking me to name the factor, the following error appears:

"Unrecognized function or variable 'matched_data'.

Error in limo_random_select (line 1158) data(:,:,:,matrix_index) = matched_data;

Error in limo_random_effect>ANOVA_Callback (line 265) limo_random_select(answer,handles.chan_file,'nboot',handles.b,'tfce',handles.tfce,'type','Channels');

Error in gui_mainfcn (line 95) feval(varargin{:});

Error in limo_random_effect (line 29) gui_mainfcn(gui_State, varargin{:});

Error in matlab.graphics.internal.figfile.FigFile/read>@(hObject,eventdata)limo_random_effect('ANOVA_Callback',hObject,eventdata,guidata(hObject)) Error while evaluating UIControl Callback."

This error stops the analysis, and I can never proceed to the window where the ANOVA model is presented.

If you could help me with these errors, that would be amazing.

Kind regards, Carlos Romero-Rivas

[CPernet]

Hi Carlos,

2 things: (1) your study doesn't have a name which is not recommended (it will work but files can end up being at the wrong place, or mixed up if you create different designs; (2) LIMO.Type is somehow missing which create your error (I just added a catch for that in the next release coming out next week) - this is usually specified when calling pop_limo see e.g. https://github.com/LIMO-EEG-Toolbox/limo_meeg/wiki/2.-One-way-repeated-measures-ANOVA-(Famous,-Unfamiliar,-Scrambled-faces-as-conditions)

are you trying to run LIMO on IC? hasn't been fully tested but happy to support you in this thx

[CarlosRR86]

Hi Cyril,

Many thanks for your kind response.

Error 1 fixed.

However, the second error still appears, even if running the code directly... As you suggested, it might be caused by running LIMO on IC (I need a remote VPN connection to my institution in order to run Matlab). I will try to find another version of Matlab that does not require a VPN connection. Hopefully that will do (I will keep you posted).

Kind regards, Carlos

[CPernet]

please try the STUDY interface see if IC runs - pop_limo sould also take ''ica'' as argument in let me know, we can fix any issue you have (hopefully)

[CarlosRR86]

Hi Cyril,

I run the analyses using the STUDY interface (that is, not using LIMO, but STUDY statistics), and it worked just fine. However, when I try to run the analyses on LIMO, the same error keeps appearing (error 2 in my first post); this is the case both when using the LIMO interface or the code provided in the tutorials.

Just to be sure (sorry, I am kind of a Matlab-EEGLAB dummy):

• What do you mean by "IC"?
• How can I specify "ica" as argument in pop_limo?

Many thanks again for all your help. Carlos

[CPernet]

Hi Carlos, try using https://github.com/LIMO-EEG-Toolbox/limo_tools/tree/HotFixes see if that solves your problem --> for ICA in the interface estimate model on ica --> for pop_limo you pass icaerp instead of daterp (see pop_limo help)

[CPernet]

data(:,:,:,matrix_index) = matched_data; error is because it can't parse the data between subject, either matching IC (from ica) or channel

if https://github.com/LIMO-EEG-Toolbox/limo_tools/tree/HotFixes doesn't solve it, share a few subjects on google drive and I'll have a look