<div dir="ltr">Dear Azadeh,<div><br></div><div>> I wonder if anyone knows how I can get the individual channel values from an interpolated image matrix of a scalp map?<br></div><div><br></div><div>That's kind of my plugin std_envtopo() does. You may want to check code, from line 292 and on (see below). However, I recommend you go back to channel because you want to avoid the effect of interpolation.</div><div><br></div><div><div> %%%%%%%%%%%%%%%%%%%%%%%%%%%</div><div> %%% convolve topo x erp %%%</div><div> %%%%%%%%%%%%%%%%%%%%%%%%%%%</div><div> tmpTopo1 = single(reshape(cell2mat(topo), [67 67 length(topo)]));</div><div> tmpTopo2 = tmpTopo1(~isnan(tmpTopo1));</div><div> tmpTopo3 = reshape(tmpTopo2, [length(tmpTopo2)/length(topo) length(topo)]);</div><div> convTopoErp{1, cls}{columnwise,rowwise} = tmpTopo3*erp; % i.e. summing all the ICxmap things (topoact)</div></div><div><br></div><div>Makoto</div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Jan 7, 2016 at 12:36 PM, Azadeh HajiHosseini <span dir="ltr"><<a href="mailto:hajihosseini@gmail.com" target="_blank">hajihosseini@gmail.com</a>></span> wrote:<br><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 dir="ltr">Hi EEGLAB users,<div><br></div><div>I wonder if anyone knows how I can get the individual channel values from an interpolated image matrix of a scalp map? I have a 67 x 67 scalp map matrix and the channel location coordinates in Theta, R, and X, Y, Z format but I don't know how I can find the value of specific channels from the interpolated image...</div><div><br></div><div>I need this because when I do clustering, the STUDY.cluster(i).topo which represents the scalp map of 'cluster i' is a 67 x 67 matrix while I am interested in creating the time-course of each cluster (as you would do for each Independent Component using the .icaweights matrix), so I need the value assigned to each channel. </div><div><br></div><div>I would appreciate your ideas!</div><div><br></div><div>Best,</div><div><br></div><div><div style="color:rgb(0,0,0);font-family:Tahoma;font-size:13px">Azadeh HajiHosseini<div>Postdoctoral Research Fellow</div><div>Pacific Parkinson's Research Centre</div><div>University of British Columbia, Canada</div><div><a href="http://www.parkinsons.ubc.ca/" target="_blank">http://www.parkinsons.ubc.ca/</a></div></div></div><div><br></div><div><br></div><div><br></div></div>
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