Labelling mulitple traces on plot

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Joseph 2013-3-18

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/67571-labelling-mulitple-traces-on-plot

Hi,

How would you go about automatically labeling each trace on a plot for the case where the values are automatically generated in a for loop

from this

to this

The labels either sitting on top of each trace or adjacent outside the plot preferably with transparent background.

my code:

for nn = 1:Kappan
    cc = jet(Kappan);
    figure(1)
    loglog(dratio,G(nn,:),'.-','color',cc(nn,:))
    grid on
    xlabel('Length / Diameter')
    ylabel('Gain')
    legend('boxoff'),legend(c,'location','NorthWest')
    hold on
end
hold off

Thank You,

Joe

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Joseph 2013-3-18

编辑：Walter Roberson 2013-3-18

在 MATLAB Online 中打开

Hi Thanks for the replies. c variable is to color each trace code below

c={}; for i=1:length(Kappa) c{end+1}=num2str(Kappa(i)); end
for nn = 1:Kappan cc = jet(Kappan); figure(1) loglog(dratio,G(nn,:),'.-','color',cc(nn,:)) grid on xlabel('Length / Diameter') ylabel('Gain') legend('boxoff'),legend(c,'location','NorthWest') hold on end hold off
% set(gcf, 'PaperPositionMode', 'auto'); saveas(gcf, 'test2', 'pdf') %Save figure export_fig('C:\Users\Joseph\Documents\Geophysics\PhD\Matlab', '-pdf','-painters');

Walter Roberson 2013-3-18

I adjusted my code accordingly.

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采纳的回答

Walter Roberson 2013-3-18

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/67571-labelling-mulitple-traces-on-plot#answer_79008

编辑：Walter Roberson 2013-3-18

在 MATLAB Online 中打开

figure(1)
for nn = 1:Kappan
  loglog(dratio, G(nn,:), 'kd', 'LineStyle', 'none');
  if nn == 1
    grid on
    xlabel('Length / Diameter')
    ylabel('Gain')
    hold on
  end
  text(dratio(end), G(nn,end), str2num(Kappa(nn)), 'HitTest', 'off', 'HorizontalAlignment', 'center', 'VerticalAlignment', 'bottom')
end
hold off

We need more information in order to generate the "wait" line and the infinity trace.

Yes, that's correct. Nan for the output of Gain if Kappa = Inf. So I guess I'll put an arbitrary large number for example 10^10 as Inf. And then how would you replace 10^10 on the text label with Inf?

Walter Roberson 2013-3-18

在 MATLAB Online 中打开

 if nn == Kappan
   Kstr = 'inf';
 else
   Kstr = str2num(Kappa(nn));
 end
 text(dratio(end), G(nn,end), Kstr, 'HitTest', 'off', 'HorizontalAlignment', 'center', 'VerticalAlignment', 'bottom')