problem with freqdescriptives

[jan-mathijs schoffelen]

Dear Nathan,

If you rely on this specific functionality of freqdescriptives I
would advice you to copy the old version into your fieldtrip-folder.
There are indeed some bugs in the more recent versions of
freqdescriptives which have been introduced along the way, but I (and
others) did not yet find time to fix it. We anyway hope to soon move
to a new implementation of freqdescriptives, which does not seem to
make the patching worthwile.

Yours,

Jan-Mathijs


On Apr 8, 2009, at 9:28 PM, Nathan Killian wrote:

> Hello,
>
> I was wondering if anyone knew why a particular configuration is
> not giving me a jackknife result for the power spectrum, even
> though I am keeping trials. This problem occurs when I use
> FT20090404, but I at least get something returned for the standard
> error with FT20080611 (and it at least looked reasonable). I am
> using this analysis:
> cfg.output      = 'powandcsd';
> cfg.method      = 'mtmfft';
> cfg.foilim      = [0,100];
> cfg.tapsmofrq   = 4;
> cfg.pad         = 'maxperlen';
> cfg.keeptrials  = 'yes';
> cfg.keepfourier = 'no';
> cfg.keeptapers  = 'no';
> cfg.pseudovalue = 'no';
> cfg.jackknife   = 'yes';
> cfg.complex     = 'complex';
> freq = freqanalysis(cfg, data);
> freqdes = freqdescriptives(cfg, freq);
>
> Additionally, I found if you keeptrials and don't set keepfourier
> you will get an error only with the new version (could be easily
> fixed in the freqdescriptives function).
>
> Thank you for your help!
>
> Nathan
>
> --
> Graduate Student - Georgia Tech Bioengineering
> Buffalo Lab at Emory-Yerkes: 404.712.9431
> Potter Lab at Georgia Tech: 404.385.4083
> ----------------------------------
>
> The aim of this list is to facilitate the discussion between users
> of the FieldTrip toolbox, to share experiences and to discuss new
> ideas for MEG and EEG analysis.
>
> http://listserv.surfnet.nl/archives/fieldtrip.html
>
> http://www.ru.nl/fcdonders/fieldtrip/
>

----------------------------------
The aim of this list is to facilitate the discussion between users of the FieldTrip  toolbox, to share experiences and to discuss new ideas for MEG and EEG analysis. See also http://listserv.surfnet.nl/archives/fieldtrip.html and http://www.ru.nl/neuroimaging/fieldtrip.