<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial,helvetica,sans-serif;font-size:10pt"><div style="font-family: arial,helvetica,sans-serif; font-size: 10pt;"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Dear Ingrid,<br><br>Thanks for your speedy reply.<br><br>Best regards,<br>Amr Ayoub<br></span></font><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Ingrid Nieuwenhuis <ingrid.nieuwenhuis@DONDERS.RU.NL><br><b><span style="font-weight: bold;">To:</span></b> FIELDTRIP@NIC.SURFNET.NL<br><b><span style="font-weight: bold;">Sent:</span></b> Thursday, August 6, 2009 2:26:28 PM<br><b><span style="font-weight: bold;">Subject:</span></b> Re: [FIELDTRIP] freqanalysis_wltconvol variance<br></font><br>
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<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Dear Amr,</span></font></p>
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<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">If you do freqanalysis with cfg.keeptrials
= ‘yes’, you get the power per trial. If you subsequently use
freqdescriptives (see help for detailed options) you can compute the variance
over trials.</span></font></p>
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<p class="MsoNormal"><font color="navy" face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial; color: navy;">Best Ingrid</span></font></p>
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<p class="MsoNormal"><b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma; font-weight: bold;">From:</span></font></b><font face="Tahoma" size="2"><span style="font-size: 10pt; font-family: Tahoma;">
FieldTrip discussion list
[mailto:FIELDTRIP@NIC.SURFNET.NL] <b><span style="font-weight: bold;">On Behalf
Of </span></b>Amr Ayoub<br>
<b><span style="font-weight: bold;">Sent:</span></b> Thursday, August 06, 2009
1:56 PM<br>
<b><span style="font-weight: bold;">To:</span></b> FIELDTRIP@NIC.SURFNET.NL<br>
<b><span style="font-weight: bold;">Subject:</span></b> [FIELDTRIP]
freqanalysis_wltconvol variance</span></font></p>
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<p class="MsoNormal"><font face="Arial" size="2"><span style="font-size: 10pt; font-family: Arial;">Hello,<br>
<br>
I am expecting that you are averaging the power spectrum across the trials in
freqanalysis_wltconvol. Is there a way to compute the variance across the
number of trials?<br>
<br>
Thanks in advance<br>
Amr Ayoub</span></font></p>
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<p>----------------------------------</p>
<p>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.</p>
<p><span> <a target="_blank" href="http://listserv.surfnet.nl/archives/fieldtrip.html">http://listserv.surfnet.nl/archives/fieldtrip.html</a></span></p>
<p><span> <a target="_blank" href="http://www.ru.nl/fcdonders/fieldtrip/">http://www.ru.nl/fcdonders/fieldtrip/</a></span></p>
<p>----------------------------------</p>
<p>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.</p>
<p><span> <a target="_blank" href="http://listserv.surfnet.nl/archives/fieldtrip.html">http://listserv.surfnet.nl/archives/fieldtrip.html</a></span></p>
<p><span> <a target="_blank" href="http://www.ru.nl/fcdonders/fieldtrip/">http://www.ru.nl/fcdonders/fieldtrip/</a></span></p>
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<p>----------------------------------</p>
<p>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.</p>
<p> http://listserv.surfnet.nl/archives/fieldtrip.html</p>
<p> http://www.ru.nl/fcdonders/fieldtrip/</p>