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Hello,</div>
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I am running into this warning (<b style="font-size:12pt;background-color:rgb(255, 255, 255)">Warning: Iteration limit reached)</b> with the r<span style="color: rgb(0, 0, 0); font-family: "Times New Roman", Times, serif; font-size: 12pt;">est analysis slope
code below.</span><b style="font-size: 12pt; font-style: inherit; font-variant-ligatures: inherit; font-variant-caps: inherit;"></b></div>
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%% Create Slope Data
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<div>for subj = subj_list</div>
<div> </div>
<div> subject = subjname{subj};</div>
<div> restdir = [maindir subject '/rest/'];</div>
<div> fftdir = [restdir 'fft/'];</div>
<div> slopedir = [restdir 'slope/'];</div>
<div> if(exist(slopedir, 'dir') == 0)</div>
<div> mkdir(slopedir);</div>
<div> end</div>
<div> cd(restdir);</div>
<div> load([fftdir 'fft_rest_matched.mat'],'fft_car')</div>
<div> </div>
<div> % select channels</div>
<div> cfg = [];</div>
<div> cfg.channel = ft_channelselection({'F*','C*'}, fft_car.label);</div>
<div> fft_car = ft_selectdata(cfg,fft_car);</div>
<div> </div>
<div> % determine frequency indices</div>
<div> lf = find(30==round(fft_car.freq,0));</div>
<div> hf = find(50==round(fft_car.freq,0));</div>
<div> </div>
<div> % compute slope</div>
<div> for c=1:size(fft_car.powspctrm,2) % channel</div>
<div> for tr=1:size(fft_car.powspctrm,1) % trial</div>
<div> </div>
<div> power = []; rfit = [];</div>
<div> power = log10(squeeze(fft_car.powspctrm(tr,c,lf:hf)));</div>
<div> rfit = robustfit(log10(fft_car.powspctrm(lf:hf)),power);</div>
<div> slope_rest(c,tr) = rfit(2);</div>
<div> </div>
<div> end</div>
<div> end</div>
<div> </div>
<div> % for each channel create average across trials</div>
<div> for c = 1:size(slope_rest,1)</div>
<div> slope_rest_avg(c,1) = mean(slope_rest(c,:),2);</div>
<div> end</div>
<div> </div>
<div> filename = strcat('slope_rest_car.mat');</div>
<div> save([slopedir filename],'slope_rest','slope_rest_avg');</div>
<div> </div>
<div> clear c tr fft_car slope_rest*</div>
<div> </div>
end<br>
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Any help would be appreciated.</div>
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Sincerely,</div>
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<span style="font-size:12pt; font-family:"Times New Roman",Times,serif">Michelle (Yee Suet) Wong</span></div>
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<span style="font-family:"Times New Roman",Times,serif"></span><span style="font-size:12pt; font-family:"Times New Roman",Times,serif">BHK, MSc, PhD Candidate</span></div>
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<span style="font-size:12pt; font-family:"Courier New",monospace"><span style="color:rgb(33,33,33); font-family:"Times New Roman",Times,serif; font-size:16px">Western University</span><br>
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<span style="font-family:"Times New Roman",Times,serif"></span><span style="font-size:12pt; font-family:"Times New Roman",Times,serif">School of </span><font color="#212121" face="Courier New, monospace"><span style="font-family:"Times New Roman",Times,serif">Kinesiology </span></font></div>
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<span style="font-family:"Times New Roman",Times,serif"></span><span style="font-size:12pt; font-family:"Courier New",monospace"><span style="color:rgb(33,33,33); font-family:"Times New Roman",Times,serif; font-size:16px">Exercise, Mobility, and Brain Health
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