[FieldTrip] ft_read_header didn't work on the matlab opened from terminal

[Konstantinos Tsilimparis]

Dear Yiheng,

The ft_read_header function works fine for me with a .fif datafile in both cases: when I open MATLAB from the desktop icon and from the terminal. I use Windows 10 and MATLAB2022a.

From your error message it appears that fiff_read_epochs is not found in your path. This function is located in fieldtrip/external/mne, which should be added automatically when you run ft_read_header. However, it seems that this isn't happening for you. To fix that you can manually add this path by running the command ft_hastoolbox('mne', 1).

Best,
Konstantinos


From: fieldtrip <fieldtrip-bounces at science.ru.nl> On Behalf Of ??? via fieldtrip
Sent: Thursday, August 29, 2024 12:02 PM
To: fieldtrip at science.ru.nl
Cc: 胡益衡 <yhhu2020 at ion.ac.cn>
Subject: [FieldTrip] ft_read_header didn't work on the matlab opened from terminal

Dear all,

I suddenly found my ft_read_header function could not work and gave errors as bellow if I opened the matlab from terminal.


>> hdr = ft_read_header('hyh_raw_trans_ref_tsss.fif');
Transforming MEG channels according to the device to head transform from the data
    306 MEG channel locations transformed
Error using ft_read_header
Undefined function 'fiff_read_epochs' for input arguments of type 'char'.


But ft_read_header works when I open matlab directly clicking the desktop MATLAB icon. In both cases, I add fieldtrip folder to the path and execute the ft_defaults<https://www.fieldtriptoolbox.org/reference/ft_defaults> function before I run ft_read_header.

Can someone tell me the reason?



Thanks,

Yiheng Hu
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