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<p>Dear all</p>
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<p>I am fairly new to FieldTrip so apologies if this is a very basic question...</p>
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<p>I am using ft_freqanalysis and wanted to obtain average power values in frequency bands rather than power values at particular frequencies. So, following the documentation online, I specified the following:</p>
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<div>cfg = [];</div>
<div><span style="font-size: 12pt;">cfg.method = 'mtmfft'; </span><br>
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<div>cfg.taper = 'hanning'; </div>
<div>cfg.foilim = [1 3]; % get power in delta range</div>
<div><span style="font-size: 12pt;">cfg.keeptrials = 'yes';</span><br>
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<div>cfg.output = 'pow';</div>
<div>FFThann = ft_freqanalysis(cfg, data);</div>
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<div>But the powspctrm field I get in FFThann gives power values for 0.5 Hz steps across the 1-3 Hz range, rather than a single average power value for the 1-3 Hz range. </div>
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<div>I was wondering if I have specified something incorrectly? I've also tried adding "<span style="font-family: Calibri, Arial, Helvetica, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">cfg.avgoverfreq
= 'yes';" but this doesn't change the output.</span></div>
<div><span style="font-family: Calibri, Arial, Helvetica, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;"><br>
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<div><span style="font-family: Calibri, Arial, Helvetica, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">Many thanks in advance</span></div>
<div><span style="font-family: Calibri, Arial, Helvetica, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", NotoColorEmoji, "Segoe UI Symbol", "Android Emoji", EmojiSymbols; font-size: 16px;">Lizzie </span></div>
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<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Garamond","serif"; color:#1F497D">---------------------------------------------------------------------------</span><span style="font-family:"Garamond","serif"; color:black"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Garamond","serif"; color:#1F497D">Lizzie Shephard, PhD</span><span style="font-family:"Garamond","serif"; color:black"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Garamond","serif"; color:#1F497D">Postdoctoral researcher</span><span style="font-family:"Garamond","serif"; color:black"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Garamond","serif"; color:#1F497D">2.21 MRC SGDP Centre</span><span style="font-family:"Garamond","serif"; color:black"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Garamond","serif"; color:#1F497D">Institute of Psychiatry, Psychology, & Neuroscience</span><span style="font-family:"Garamond","serif"; color:black"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Garamond","serif"; color:#1F497D">King’s College London</span><span style="font-family:"Garamond","serif"; color:black"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Garamond","serif"; color:#1F497D">De Crespigny Park</span><span style="font-family:"Garamond","serif"; color:black"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Garamond","serif"; color:#1F497D">London, SE5 8AF</span><span style="font-family:"Garamond","serif"; color:black"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Garamond","serif"; color:#1F497D">0207 848 5272</span><span style="font-family:"Garamond","serif"; color:black"></span></p>
<p class="MsoNormal" style="margin-bottom:0.0001pt"><span style="font-family:"Garamond","serif"; color:#1F497D">elizabeth.1.shephard@kcl.ac.uk</span></p>
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