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<span class="Apple-tab-span" style="white-space:pre"></span>Yes, thank you very much Casper!
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<div class="">cheers,</div>
<div class="">Mona</div>
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<div class="">On Jun 28, 2017, at 11:36 AM, Casper Kerren <<a href="mailto:CXK699@student.bham.ac.uk" class="">CXK699@student.bham.ac.uk</a>> wrote:</div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Hi Mona,<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""> </span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">I guess you want to measure the fluctuation in the data.<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">If for example you have your data in a channel-time-trial structure, you can get the RMS over electrodes by using the following:<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">AvgChan = squeeze(sqrt(mean(data.^2, 1))); (Just change the dimension you want to calculate it over).<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">You will then get a measure per time-trial point.<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">If you check that against the rms(data,1) you see that you get the same answer.<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class=""> </span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">I don’t know about a rms function in fieldtrip, but detrended fluctuation analysis involves RMS, so maybe you can start looking there.<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">I hope this helped you a bit.<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Kind regards,<o:p class=""></o:p></span></div>
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<span style="font-size: 11pt; font-family: Calibri, sans-serif; color: rgb(31, 73, 125);" class="">Casper</span></div>
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Mona Wong<br class="">
Web & Mobile Application Developer<br class="">
San Diego Supercomputer Center<br class="">
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"When your thoughts are too expensive,<br class="">
to ever want to keep."<br class="">
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<span class="Apple-tab-span" style="white-space: pre;"></span>-- U2's When I Look At The World<br class="">
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