MATLAB: I have attached a fig file in which I have used 3 legends for upper, middle and lower curve, respectively. Actually, there are six lines in each curve but I want each curve to look like a single line. How is it possible using fig file.

put a curve into loopreduce legend

I have attached a fig file in which I have used 3 legends for upper, middle and lower curve, respectively. Actually, there are six lines in each curve but I want each curve to look like a single line. How is it possible using fig file.

Best Answer

Try this: 
I = openfig('comp25.fig');
Ax = gca;
lgnd = Ax.Legend;
Lines = findobj(Ax,'Type','line');
for k1 = 1:fix(numel(Lines)/6)                              % Consider 6 ‘Lines’ In Each Iteration
    for k2 = 1:6
        X(k2,:) = Lines(k2+(k1-1)*6).XData;                 % Get ‘X’ Values For This Set
        Y(k2,:) = Lines(k2+(k1-1)*6).YData;                 % Get ‘Y’ Values For This Set
    end
    Xm(k1,:) = X(1,:);                                      % X-Vector (For Plot)
    Ym(k1,:) = mean(Y);                                     % Y-Vector (For Plot) - Uses ‘mean’, ‘median’ Or Others May Be Appropriate As Well
end
figure
semilogy(Xm', Ym')
grid
legend(Ax.Legend.String)
xlabel(Ax.XLabel.String)
ylabel(Ax.YLabel.String)
It is difficult to determine what you want for each single line, so here I took th mean of each consecutive group of 6 Line objects.
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