Plot lables with hold on

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Jalali 2012-6-24

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plot(R, ':.b') %blue

xlabel('Time')

ylabel('Dollar')

hold all

plot(L, '-.g') %green

plot(D, '--r') %red

I'm using hold all to plot R, D, and L as shown above. How can I show a label for each one with the same color, using 'legend'? Any other suggestion would be appreciated! :)

Thanks,

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回答（1 个）

Walter Roberson 2012-6-24

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You want the colors in the legend to be all the same as each other ("the same color"), or you want the colors in the legend to correspond to the line colors?

If you want the colors in legend to correspond to the line colors, just call legend() and specify the labels: it will automatically use the line colors that were used in the plotting.