<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Dear Ahmed,<div><br></div><div><div>I do not see what can be the problem. This function is a cornerstone of EEGLAB and is relatively stable.</div><div>Try testing it with a data file in eeglab/function/ressources. For example:</div><div><br></div><div>figure; [handle,Zi,grid,Xi,Yi] = topoplot(rand(1,81),'Standard-10-20-Cap81.ced')</div><div><br></div><div>If it does not work for you, there might be some function overload on your system that create conflicts.</div><div>Best,</div><div><br></div><div>Arno</div><div><br><div><div>On 5 Apr 2013, at 12:38, ingenieur eniso wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"><div dir="ltr"><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">Dear all,</span></p><div style="margin-bottom: 0.0001pt; line-height: normal; "><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US"> </span><br class="webkit-block-placeholder"></div><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">I am working on eeg signal processing. I have 19 channel eeg recorded data in
edf format. I am applying FFT. I use Topoplot function to draw map figures
using averaged FFT data. </span><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US"> I have written following program in MATLAB<br></span></p><p style="margin-bottom:0.0001pt;line-height:normal">
<span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">[outData PS datavector]=fft_powers(cha);</span></p><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">[handle,Zi,grid,Xi,Yi] = topoplot(datavector,'Standard-10-20-Cap19.locs')</span></p><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">An error is occurred:<br></span></p><p style="margin-bottom:0.0001pt;line-height:normal">
<span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US"><br></span></p><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">??? Error using ==> mldivide</span></p><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">Matrix dimensions must agree.</span></p><div style="margin-bottom: 0.0001pt; line-height: normal; "><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US"> </span><br class="webkit-block-placeholder"></div><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">Error in ==> topoplot at 890</span></p><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">squeezefac = rmax/plotrad;</span></p><div style="margin-bottom: 0.0001pt; line-height: normal; "><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US"> </span><br class="webkit-block-placeholder"></div><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">Error in ==> powerfft at 67</span></p><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">[handle,Zi,grid,Xi,Yi] = topoplot(datavector,'Standard-10-20-Cap19.locs')</span></p><div style="margin-bottom: 0.0001pt; line-height: normal; "><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US"> </span><br class="webkit-block-placeholder"></div><p style="margin-bottom:0.0001pt;line-height:normal"><br></p><div style="font-family:arial,sans-serif;font-size:13px">Therefore, it
is requested in your kind honor to please guide me in this regard as I
am working on EEGlab these days and need your urgent help.</div>
<div style="font-family:arial,sans-serif;font-size:13px"><br></div><div style="font-family:arial,sans-serif;font-size:13px">I hope you will send me positive and helpful response.</div><div style="margin-bottom: 0.0001pt; line-height: normal; "><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US"> </span><br class="webkit-block-placeholder"></div><div style="margin-bottom: 0.0001pt; line-height: normal; "><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US"> </span><br class="webkit-block-placeholder"></div><div style="margin-bottom: 0.0001pt; line-height: normal; "><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US"> </span><br class="webkit-block-placeholder"></div><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"" lang="EN-US">Thanks a lot in advance!</span></p><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"">Best,</span></p><p style="margin-bottom:0.0001pt;line-height:normal"><span style="font-size:12pt;font-family:"Times New Roman","serif"">ahmed</span></p></div>
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