[FieldTrip] [SPAM] Problems with ft_freqanalysis

Frédéric Roux f.roux at bcbl.eu
Thu Apr 16 11:50:06 CEST 2015

Hi Fredrica,

this is most likely do to a path problem.

Try adding this at the beginning of your script/function:



Frédéric Roux
Postdoctoral Scientist
BCBL. Basque Center on Cognition, Brain % Language.

f.roux at bcbl.eu
Tel: +34 943 309 300 Ext 211
Fax: +34 943 309 052

Legal disclaimer/Aviso legal/Lege-oharra: www.bcbl.eu/legal-disclaimer

----- Original Message -----
From: "Federica Mauro" <federica.ma at gmail.com>
To: "donders fieldtrip" <fieldtrip at donders.ru.nl>
Sent: Thursday, April 16, 2015 11:41:17 AM
Subject: [SPAM] [FieldTrip] Problems with ft_freqanalysis

Hi everybody, 

I'm trying to compute coherence analyses following the coherence tutorial at http://www.fieldtriptoolbox.org/tutorial/coherence . 
Since a couple of days, I have this error message in computing ft_freqanalysis: 

Error using load 
Unable to read file precompute_dpss: No such file or directory. 

Error in dpss (line 9) 
load precompute_dpss 

Error in ft_specest_mtmfft>double_dpss (line 335) 
tap = dpss(double(a), double(b), varargin{:}); 

Error in ft_specest_mtmfft (line 151) 
tap = 

Error in ft_freqanalysis (line 494) 
[spectrum,ntaper,foi] = ft_specest_mtmfft(dat, time, 'taper', 
cfg.taper, options{:}, 'feedback', fbopt); 

Is that a bug? 

Here is the code I'm using: 
cfg = []; 
cfg.output = 'powandcsd'; 
cfg.method = 'mtmfft'; 
cfg.foilim = [5 40]; 
cfg.tapsmofrq = 5; 
cfg.keeptrials = 'yes'; 

freq = ft_freqanalysis(cfg, eeg); 

Thank you in advance, 

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