Label each line from plot automatically

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Roger Gomila
Roger Gomila 2020-4-1
评论： Ameer Hamza 2020-4-2
I have the following plot generated by the curve fitting tool application
I would like to instead of having the legend, to plot the labels on top of each line in a given x value (for example x = 7). I have seen people use the text() command, but I would like to know if there's any "automatic" way of doing it and avoid having to write all the exact points.
The code I use to plot one line is the following:
x = 1.5; %linewidth
set(p,'linewidth',x);
p = plot(fitresult{5},'b');
Thanks

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回答（1 个）

Ameer Hamza
Ameer Hamza 2020-4-1
Somethis like this
t = linspace(0,10, 100)';
y = sqrt(t).*linspace(1,1.5,5);
idx = find(t > 7, 1);
text_x = repmat(t(idx), 1, size(y,2));
text_y = y(idx, :);
labels = {'label1', 'label2', 'label3', 'label4', 'label5'};
plot(t,y)
hold on
t = text(text_x, text_y, labels, 'Color', 'k');
  2 个评论
Roger Gomila
Roger Gomila 2020-4-2
I understand what you did there but i do not have a common x axis, therefore i use
[xData, yData] = prepareCurveData( x_B3_NOV_2019_2, y_B3_NOV_2019_2 );
[fitresult{1}, gof(1)] = fit( xData, yData, ft, opts );
and obtain a xData, yData for each of the 6 fitresults{} i have.
I am facing trouble fith the plotting as that fitresults{}.
Ameer Hamza
Ameer Hamza 2020-4-2
Can you show an example of your plotting code?

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