[Eeglablist] Error reading .ced location files

[Nic Badcock]

Dear EEGLAB List,

I'm attempting to import a .ced file with the following code (where my_file = the full path to a .ced file):

EEG = pop_editset(EEG, 'chanlocs', my_file)

It's returning the following error:
Unrecognized property 'ref' for class 'string'.

Error in eeg_checkset (line 1063)
            EEG.chanlocs(1).ref = ref;

Error in pop_editset (line 495)
EEGOUT = eeg_checkset(EEGOUT);

This code and .ced file have previously worked for me, but in older versions of MATLAB (currently using: '9.13.0.2080170 (R2022b) Update 1') and EEGLAB (using the 2023.0 version) - I'm on a Windows (10 Enterprise, 19045.3208).

The eeg_checkset function appears to assume that EEG.chanlocs is the EEG structure before it checks to see if it's actually a file name - hence it doesn't like ".ref" being added as it's not a structure variable.

I wanted to check whether I've missed something obvious before playing with the code (e.g., putting the 'isstruct' check higher in the code).

Many thanks,
Nic

PS here's a link to a copy of the .edf<https://urldefense.com/v3/__https://www.dropbox.com/scl/fi/j5gh36225wy8zlz3i3xkg/EEG_PEAD-PCH_P001_t1_SD_EPOCPLUS_185931_2023.05.23T10.32.00-08.00.edf?rlkey=0bxk2l4er11e3ul76zr6sba5l&dl=0__;!!Mih3wA!HNG9lyTcKqkj8x8g5tlwvEXCLSl2_jB2vURh9UcmRgZP7LvOYsRHop5024JkJ_p16mXQyH4-F2R0aDlmgbZpvy2TKiK5Ls47Nz2Z$ > I'm working with as well as the .ced<https://urldefense.com/v3/__https://www.dropbox.com/scl/fi/no7mjphpuk3znlmvdyre7/Emotiv_Sensor_Locations.ced?rlkey=8lwtbqdm6smqb7a8c1qi1sxxw&dl=0__;!!Mih3wA!HNG9lyTcKqkj8x8g5tlwvEXCLSl2_jB2vURh9UcmRgZP7LvOYsRHop5024JkJ_p16mXQyH4-F2R0aDlmgbZpvy2TKiK5Ln140Oqx$ > - maybe to complicate things, the edf is an Emotiv file so it's just columns 7 to 20 that are needed.


Dr Nicholas Badcock (he/him)
Senior Lecturer
School of Psychological Science  •  M304, Perth WA 6009 Australia
+61 8 6488 3265  •  nicholas.badcock at uwa.edu.au
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