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<p class="MsoNormal"><span lang="EN-US">Hello everyone,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’d like to receive exact numeric p-values as well as the other statistic parameters of the power spectrum analysis, for every single electrode or at least for the electrodes with significant difference (p=.05). I just
know how to plot the power spectra of different variable comparisons with the option of certain p-values or “exact”.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’ve read the attached topic ‚Get the p-value‘, but with the mentioned solution I don’t get exact numeric p-values and the statistic test corresponding parameters of each electrode using power spectrum plots (alpha-frequency,
beta etc.). <br>
Can anyone give me advice?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks in advance!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Kind regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal">Alexander John<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Attached Email:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><a href="https://sccn.ucsd.edu/pipermail/eeglablist/2016/011065.html"><span lang="EN-US">[Eeglablist] Get the p-value
</span></a><span lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<pre><span lang="EN-US">Dear Edward and Andria,<o:p></o:p></span></pre>
<pre><span lang="EN-US"><o:p> </o:p></span></pre>
<pre><span lang="EN-US">I got two pieces of advice for you.<o:p></o:p></span></pre>
<pre><span lang="EN-US">To obtain exact p-values for the significance-masked spectra,<o:p></o:p></span></pre>
<pre><span lang="EN-US"><o:p> </o:p></span></pre>
<pre><span lang="EN-US">1. The simplest way to do it is to select “exact” or empty in the p-value<o:p></o:p></span></pre>
<pre><span lang="EN-US">edit box.<o:p></o:p></span></pre>
<pre><span lang="EN-US"><o:p> </o:p></span></pre>
<pre><span lang="EN-US">2. That should be done from the command window. The easy way should we<o:p></o:p></span></pre>
<pre><span lang="EN-US">something like this (ie. for channel AF4):<o:p></o:p></span></pre>
<pre><span lang="EN-US"> [STUDY, specdata, allfreqs, pgroup, pcond, pinter] =<o:p></o:p></span></pre>
<pre><span lang="EN-US">std_specplot(STUDY,ALLEEG,'channels',{'AF4'});<o:p></o:p></span></pre>
<pre><span lang="EN-US"><o:p> </o:p></span></pre>
<pre><span lang="EN-US">Looks like the solution 2 is the right way to do it with coding.<o:p></o:p></span></pre>
<pre><span lang="EN-US"><o:p> </o:p></span></pre>
<pre><span lang="EN-US">Makoto<o:p></o:p></span></pre>
<pre><span lang="EN-US"><o:p> </o:p></span></pre>
<pre><span lang="EN-US">On Mon, Apr 4, 2016 at 11:19 PM, Makoto Miyakoshi <</span><a href="http://sccn.ucsd.edu/mailman/listinfo/eeglablist"><span lang="EN-US">mmiyakoshi at ucsd.edu</span></a><span lang="EN-US">><o:p></o:p></span></pre>
<pre><span lang="EN-US">wrote:<o:p></o:p></span></pre>
<pre><span lang="EN-US"><o:p> </o:p></span></pre>
<pre><span lang="EN-US">><i> Dear Edward,<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">><i><o:p> </o:p></i></span></pre>
<pre><span lang="EN-US">><i> > I need to compare several channels to see if there is a significant<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">><i> difference between them, EEGLAB produces the statistical differences (in a<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">><i> Study) represented on plots.<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">><i><o:p> </o:p></i></span></pre>
<pre><span lang="EN-US">><i> Do you mean that you have within-subject conditions you want to compare<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">><i> for multiple channels, or comparison across channels are your purpose?<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">><i><o:p> </o:p></i></span></pre>
<pre><span lang="EN-US">><i> Makoto<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">><i><o:p> </o:p></i></span></pre>
<pre><span lang="EN-US">><i> On Mon, Apr 4, 2016 at 7:51 PM, Makoto Miyakoshi <</i></span><i><a href="http://sccn.ucsd.edu/mailman/listinfo/eeglablist"><span lang="EN-US">mmiyakoshi at ucsd.edu</span></a></i><i><span lang="EN-US">><o:p></o:p></span></i></pre>
<pre><span lang="EN-US">><i> wrote:<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">><i><o:p> </o:p></i></span></pre>
<pre><span lang="EN-US">>><i> Dear Edward,<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>><i><o:p> </o:p></i></span></pre>
<pre><span lang="EN-US">>><i> Hmm I'm not exactly sure it will exactly meet your needs, but you may<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>><i> want to try Simon-Shlomo Poil's NBT.<o:p></o:p></i></span></pre>
<pre>>><i> <a href="https://www.nbtwiki.net/">https://www.nbtwiki.net/</a><o:p></o:p></i></pre>
<pre>>><i><o:p> </o:p></i></pre>
<pre>>><i> Makoto<o:p></o:p></i></pre>
<pre>>><i><o:p> </o:p></i></pre>
<pre><span lang="EN-US">>><i> On Fri, Mar 4, 2016 at 10:09 PM, Edward Wiskers <</i></span><i><a href="http://sccn.ucsd.edu/mailman/listinfo/eeglablist"><span lang="EN-US">edwardwiskers at gmail.com</span></a></i><i><span lang="EN-US">><o:p></o:p></span></i></pre>
<pre><span lang="EN-US">>><i> wrote:<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>><i><o:p> </o:p></i></span></pre>
<pre><span lang="EN-US">>>><i> Hi all,<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>>><i><o:p> </o:p></i></span></pre>
<pre><span lang="EN-US">>>><i> I can apply the permutation test on the data (based on power spectrum)<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>>><i> with having correction implemented, I need to compare several channels to<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>>><i> see if there is a significant difference between them, EEGLAB produces the<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>>><i> statistical differences (in a Study) represented on plots. However, I need<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>>><i> to the p-value as a numeric number. Precisely, if I compare O1 and O2, I<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>>><i> need to see the p-value of the permutation with correction for<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>>><i> multi-comparisons as a numeric value, e.g., p=0.02.<o:p></o:p></i></span></pre>
<pre><span lang="EN-US">>>><i><o:p> </o:p></i></span></pre>
<pre><span lang="EN-US">>>><i> How to do that in EEGLAB<o:p></o:p></i></span></pre>
<pre>>>><i><o:p> </o:p></i></pre>
<pre>>>><i><o:p> </o:p></i></pre>
<pre>>>><i> Regards,<o:p></o:p></i></pre>
<pre>>>><i> Edward</i><o:p></o:p></pre>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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