[FieldTrip] error using ft_read_header func
Schoffelen, J.M. (Jan Mathijs)
jan.schoffelen at donders.ru.nl
Wed Jul 1 17:12:01 CEST 2020
Dear Johannes,
Welcome to the community! I am not so familiar with this fileformat, but looking in the code it seems that this is a genuine bug. I am wondering whether this has ever worked at all.
Long story short, in reading the header, it seems, as per line 177 in read_neuralynx_ncs, that both begrecord AND endrecord need to be defined as 0. However, in ft_read_header, line 1762, read_neuralynx_ncs is called with 1 and 0 as input arguments, rather than (what I would expect) 0 and 0. Perhaps other people might chime in here to confirm, particularly those who are reading along and who work with this fileformat themselves, but I would say that this is incorrect.
Could you try in your own code, to change the ‘1’ on line 1762 in ft_read_header into a ‘0’, and confirm that reading in of the header information then works for you?
If so, then feel free to make a PR on github for this. I know it’s a silly change, which I could easily do myself, but in the spirit of ‘we’re all in it together’ I don’t want to take the opportunity away from you :).
Of course I am just kidding, but also partly serious: if you make the suggested change in a pull request, then this improvement of the codebase will be forever in www-space associated with you (and who knows what the effect of this will be on your professional career, and on the grand scheme of things). This last remark is just a gentle nudge to everybody who is reading along. Oh, and did I already raise the argument that a medical degree does not forbid you to write code?
Best wishes,
Jan-Mathijs
J.M.Schoffelen, MD PhD
Associate PI, VIDI-fellow - PI, language in interaction
Telephone: +31-24-3614793
Physical location: room 00.028
Donders Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands
On 1 Jul 2020, at 16:23, Lang, Johannes <Johannes.Lang at uk-erlangen.de<mailto:Johannes.Lang at uk-erlangen.de>> wrote:
Dear all,
I’m new to the community and keep running into an error using the ft_read_header function.
The way I understood the documentation
hdr = ft_read_header(‘filename’)
should read the header information into an array.
However, I keep running into an error
Error using read_neuralynx_ncs (line 182)
cannot read beyond the last record
Error in ft_read_header (line 1762)
ncs = read_neuralynx_ncs(filename, 1, 0);
Not sure why this is. Has anyone had the same issue before?
Thanks in advance.
Kind regards,
Johannes Lang
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