error using freqanalysis_mtmfft

[Frederic Roux]

Hi everyone,
 
I am using freqanalysis with the following cfg structure
 
cfg             = [];
cfg.output      = 'pow';
cfg.channel     = {'MEG'};
cfg.method      = 'mtmfft';
cfg.taper       = 'dpss';
cfg.foi         = 1:200; 
cfg.t_ftimwin   = .5*ones(1,length(cfg.foi));
cfg.toi         = [-1.5:.5:2.5]; 
cfg.tapsmofrq   = 5.*ones(1,length(cfg.foi)); 
cfg.pad         = 'maxperlen';
 
and I get the following error message
 
??? Error using ==> dpss
The Time-bandwidth product NW must be a scalar.
 
Error in ==> freqanalysis_mtmfft>double_dpss at 594
tap = dpss(double(a), double(b), varargin{:});
 
Error in ==> freqanalysis_mtmfft at 421
    tap =
double_dpss(numdatbns,numdatbns*(cfg.tapsmofrq./data.fsample))';
 
Error in ==> freqanalysis at 192


K should be equal to 2*(.5*5)-1 = 4 tapers so I don't really understand what's going wrong here.
And before diving into the code I thought that maybe someone could provide me with a simple answer/solution. 
Any help with this would be greatly apreciated!
 
Frederic
  		 	   		  
_________________________________________________________________
http://redirect.gimas.net/?n=M0910xHerbstmode2
So gehst du mir nicht vor die Tür! Herbsttrends entdecken
----------------------------------
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.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.science.ru.nl/pipermail/fieldtrip/attachments/20091016/49e5ab70/attachment.html>