[FieldTrip] importing data from blackrock

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

Hi Andreas,

At this moment the code that uses the NPMK toolbox for fileio is not yet functional. I have started working on this a bit, but did not have time (and urgency) to complete this yet.
The neuroshare code is based on very outdated (windows support only) mex-code, and it does not surprise me that it does not work for you.

If you specify ‘headerformat’ and ‘dataformat’ to be ‘blackrock_nsx’ the code should take the correct turn, and end up at a portion of the m-file that is calling the NPMK functions.
However, you will hit a keyboard statement right away, so you would need to provide some additional code, that is reformatting the output of the lower-level NPMK function into the shape that FieldTrip can work with. I think you could get some inspiration from the documentation about the support for different data formats as well as some examples from the various dataformats as implemented in ft_read_data. If you can provide me with some functional code, I will be happy to plug it into the release version of FieldTrip. I also suggest you to create an account on our bugzilla server: bugzilla.fieldtriptoolbox.org<http://bugzilla.fieldtriptoolbox.org>, and assign yourself to the CC-list of bug 2964. Any progress you make, code suggestions, as well as questions regarding to the implementation of this dataformat can be posted here.

Since I don’t have dedicated time to work on this right now, the easiest way forward would be if you investigate a bit more yourself and come up with good suggestions. This will expedite the process greatly.

Thanks, and best wishes,

Jan-Mathijs



On Feb 1, 2016, at 11:36 PM, Andreas Gerhard Wutz <andreas.wutz-1 at unitn.it<mailto:andreas.wutz-1 at unitn.it>> wrote:

Dear Fieldtrip community,

I am trying to read in LFP data from a blackrock system. I started out with the sample code provided here: http://www.fieldtriptoolbox.org/getting_started/blackrock

I use Windows 7 (64-bit), Matlab 2011b (32-bit), downloaded and installed the latest version of Fieldtrip (20160128) and of the NPMK toolbox.

Unfortunately, I didn't come very far.
Here is my code:

filename = 'my_data.ns2';
data = ft_read_data(filename, 'headerformat', 'neuroshare');

Immediately exits with the following error message:
"Invalid MEX-file" pointing to "fieldtrip/external/neuroshare/mexprog.dll": The specified procedure could not be found.

Error in ns_SetLibrary (line 39)
Error in read_neuroshare (line 82)
Error in ft_read_header (line 2056)
Error in ft_read_data (line 197)

What options do I have to get this going?
Thank you very much for your help.
Best,
Andreas







--
Andreas Wutz, PhD
Post-doctoral researcher
Center for Mind/Brain Sciences (CiMeC)
University of Trento
Rovereto, Italy
_______________________________________________
fieldtrip mailing list
fieldtrip at donders.ru.nl<mailto:fieldtrip at donders.ru.nl>
http://mailman.science.ru.nl/mailman/listinfo/fieldtrip

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20160202/4f60b39b/attachment-0002.html>