<div dir="ltr">Dear Vadlamani,<div><br></div><div>Yes, you are right! Please use</div><div><br></div><div>.*</div><div><br></div><div>instead of</div><div><br></div><div>*</div><div><br></div><div>Makoto</div><div><br></div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Oct 17, 2016 at 11:44 PM, Vadlamani Samhitha <span dir="ltr"><<a href="mailto:vadlamani.samhitha@gmail.com" target="_blank">vadlamani.samhitha@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Sir , should it be a .* instead of * , because it says the matrix dimensions do not agree ?</div><div class="m_-7150672715579387050HOEnZb"><div class="m_-7150672715579387050h5"><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 18, 2016 at 10:22 AM, Makoto Miyakoshi <span dir="ltr"><<a href="mailto:mmiyakoshi@ucsd.edu" target="_blank">mmiyakoshi@ucsd.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear Vadlamani,<div><br></div><div>No. See below. You don't want to repeat for every frame to compute it, but you want to sum them across time (and normalize by the number of frames for the case of power spectral density). Note that it's not checked with Matlab.</div><div><br></div><div>Makoto</div><div><br></div><div><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpFirst" style="text-align:justify;line-height:19.5px"><span style="font-size:14pt;line-height:28px;font-family:'times new roman',serif"><b><font color="#0000ff">energy:</font></b></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpFirst" style="text-align:justify;line-height:19.5px"><span style="font-size:14pt;line-height:28px;font-family:'times new roman',serif"><font color="#0000ff">for i=1:epochs</font></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:19.5px"><span style="font-size:14pt;line-height:28px;font-family:'times new roman',serif"><font color="#0000ff"> for j=1:channels</font></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:19.5px"><span style="color:rgb(0,0,255);font-family:'times new roman',serif;font-size:14pt;line-height:28px"> energy(i,j)=sum(squeeze([EEG.i<wbr>caact(j</span><span style="color:rgb(0,0,255);font-family:'times new roman',serif;font-size:14pt;line-height:28px">,:,i)]*[EEG.icaact(j,:,<wbr>i)]));</span><br></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:19.5px"><span style="color:rgb(0,0,255);font-family:'times new roman',serif;font-size:14pt;line-height:28px"> end</span><br></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:19.5px"><span style="font-size:14pt;line-height:28px;font-family:'times new roman',serif"><font color="#0000ff">end<b></b></font></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:19.5px"><span style="font-size:14pt;line-height:28px;font-family:'times new roman',serif"><font color="#0000ff"><br></font></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:19.5px"><font face="times new roman, serif" color="#0000ff"><span style="font-size:18.6667px"><b>power:</b></span></font></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:19.5px"><font face="times new roman, serif" color="#0000ff"><span style="font-size:18.6667px"><br></span></font></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpFirst" style="text-align:justify;line-height:19.5px"><span style="font-size:14pt;line-height:28px;font-family:'times new roman',serif"><font color="#0000ff">for i=1:epochs</font></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:19.5px"><span style="font-size:14pt;line-height:28px;font-family:'times new roman',serif"><font color="#0000ff"> for j=1:channels</font></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:19.5px"><span style="color:rgb(0,0,255);font-family:'times new roman',serif;font-size:14pt;line-height:28px"> energy(i,j)=sum(squeeze([EEG.i<wbr>caact(j</span><span style="color:rgb(0,0,255);font-family:'times new roman',serif;font-size:14pt;line-height:28px">,:,i)]*[EEG.icaact(j,:,<wbr>i)]))/frames;</span><br></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:19.5px"><span style="color:rgb(0,0,255);font-family:'times new roman',serif;font-size:14pt;line-height:28px"> end</span><br></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:19.5px"><span style="font-size:14pt;line-height:28px;font-family:'times new roman',serif"><font color="#0000ff">end</font></span></p></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="m_-7150672715579387050m_-1306477939561296444h5">On Wed, Sep 21, 2016 at 3:22 AM, Vadlamani Samhitha <span dir="ltr"><<a href="mailto:vadlamani.samhitha@gmail.com" target="_blank">vadlamani.samhitha@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div><div class="m_-7150672715579387050m_-1306477939561296444h5"><div dir="ltr"><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpFirst" style="text-align:justify;line-height:150%"><font face="times new roman, serif"><span style="font-size:18.6667px">Hi list . I am supposed to compute energy and power features for epoched data-set ( matrix of the format , channels x frames x epochs ) . I would like to know , if the approach mentioned below is correct for computing energy and power. Thank you.</span></font></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpFirst" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif"><b>energy:</b></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpFirst" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif">for k=1:epochs<span></span></span></p>
<p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif">
for i=1:channels<span></span></span></p>
<p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif"> for j=1:frames<span></span></span></p>
<p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif">
energy(i,1,k)=sum([EEG.icaact(<wbr>i,j,k)]*[EEG.icaact(i,j,k)]);<span></span></span></p>
<p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif"> end <span></span></span></p>
<p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif">
end<span></span></span></p>
<p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif">end<b><span></span></b></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif"><br></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:150%"><font face="times new roman, serif"><span style="font-size:18.6667px"><b>power:</b></span></font></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:150%"><font face="times new roman, serif"><span style="font-size:18.6667px"><br></span></font></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpFirst" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif">for k=1:epochs<span></span></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif">
for i=1:channels<span></span></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif"> for
j=1:frames<span></span></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif">
power(i,1,k)=sum([EEG.icaact(i<wbr>,j,k)]*[EEG.icaact(i,j,k)])/fr<wbr>ames;<span></span></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif"> end <span></span></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpMiddle" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif">
end<span></span></span></p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:150%">
</p><p class="m_-7150672715579387050m_-1306477939561296444m_-5710911158039750173m_6599951920132486221gmail-m_-3849369691175180535gmail-MsoListParagraphCxSpLast" style="text-align:justify;line-height:150%"><span style="font-size:14pt;line-height:150%;font-family:'times new roman',serif">end<b><span></span></b></span></p></div>
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</font></span></div></div>
</blockquote></div><br></div>
</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="m_-7150672715579387050gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Makoto Miyakoshi<br>Swartz Center for Computational Neuroscience<br>Institute for Neural Computation, University of California San Diego<br></div></div>
</div></div>