<div dir="ltr">Hi Jan,<div><br></div><div>Thank you for your answer. It has been really helpful.</div><div><br></div><div>Elene.</div></div><br><div class="gmail_quote"><div dir="ltr">Hau idatzi du Schoffelen, J.M. (Jan Mathijs) (<a href="mailto:jan.schoffelen@donders.ru.nl">jan.schoffelen@donders.ru.nl</a>) erabiltzaileak (2019 urt. 8, ar. (09:00)):<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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Hi Elena,
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<div>Just like almost all high level fieldtrip functions, ft_freqanalysis requires both a ‘cfg’ variable, and a ‘data’ variable in its input. In your code you only use cfg.</div>
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<div>Best wishes,</div>
<div>Jan-Mathijs</div>
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J.M.Schoffelen, MD PhD<br>
Senior Researcher, VIDI-fellow - PI, language in interaction<br>
Telephone: +31-24-3614793</div>
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Physical location: room 00.028</div>
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Donders Centre for Cognitive Neuroimaging, Nijmegen, The Netherlands<br>
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<div>On 7 Jan 2019, at 18:21, Elene Beitia Loinaz <<a href="mailto:elene.beitia@alumni.mondragon.edu" target="_blank">elene.beitia@alumni.mondragon.edu</a>> wrote:</div>
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<div dir="ltr"><font face="arial, helvetica, sans-serif"><span>Dear Fieldtrip Community,</span> </font>
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<div><font face="arial, helvetica, sans-serif">My name is Elene Beitia, I am a student from the Basque Country. I am trying to use the fieltrip toolbox to do a source reconstruction of EEG`s in Resting State.</font></div>
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<div><font face="arial, helvetica, sans-serif">I am having troubles in doing the fourier transform. The input data that I am using is in 'ms' and the error that I get is the next one: </font></div>
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<div><span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">Error using ft_checkdata (line 525)</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">This function requires 'raw', 'raw+comp' or 'mvar' data as input, see ft_datatype_raw or ft_datatype_mvar.</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
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<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">Error in ft_freqanalysis (line 212)</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">data = ft_checkdata(data, 'datatype', {'raw', 'raw+comp', 'mvar'}, 'feedback', cfg.feedback, 'hassampleinfo', 'yes');</span> </div>
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<div>I have change the parameters to see if the problem was there but I still get the same.</div>
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<div>I add the code in this message:</div>
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<div>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% </div>
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<div><span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">%% FOURIER TRANSFORMS</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px"> </span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg = [];</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.dataset = filename;</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.datatype ='mvar';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.continuous ='yes';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.output = 'fourier';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.channelcmb = 'all';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.channel = 'all';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.trials = 'all';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.keeptrials = 'yes';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.keeptapers = 'yes';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.method = 'mtmfft';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.taper = 'hanning';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.toi = [-1 : 0.10 : 1.5];</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.foi = 1:40;</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.t_ftimwin = ones(size(cfg.foi)) * 0.5;</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.pad ='nextpow2';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">cfg.feedback = 'no';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">%cfg.hassampleinfo= 'yes';</span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px"> </span><br style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">
<span style="color:rgb(38,50,56);font-family:Roboto,sans-serif;font-size:13px">data_Fourier = ft_freqanalysis(cfg);</span> </div>
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<div>%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</div>
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<div>Hope you can give me some information in order to solve the problem,</div>
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<div>Thank you in advanced,</div>
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<div>Elene. <br>
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