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How to not include an item in a legend

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Jason
Jason 2015-1-5
评论： Jason 2015-1-5
Is it possible to change whats displayed on a legend. Im plotting 3 data sets, but data set 1 and 2 are the same, only that data set 2 plots over dataset 1 with a black box if a certain condition is met.
I therefore want to remove dataset2 from the legend?
Thanks for any pointers

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采纳的回答

Jason
Jason 2015-1-5
Done it...
For dataset1 use
h1=plot....
for dataset2
h2=plot....
and for dataset3
h3=plot
then use
legend([h1,h3],'item1','items2','Location','bestoutside','Orientation','horizontal')

更多回答（3 个）

Julian Hapke
Julian Hapke 2015-1-5
ok, here's the solution: you can tell legend() with which plot handle the legend entry is associated, by:
clf;
plot(rand(10,4));
a=get(gca,'Children');
legend([a(4);a(1)],{'bla','bli'})
note that the first created plot is at the last index of the children array
regards
Julian Hapke
Julian Hapke 2015-1-5
you could add the data set with the black boxes at last and then only define 2 legend entries.
Jason
Jason 2015-1-5
编辑：Jason 2015-1-5
I tried that first. My first data set is big squares in blue.(dataset1)
If a condition is reached, then I want these squares to be red or black (represent extremes).I then plot again within an if/elseif statement. This is my dataset 2 (that I don't want on the legend)
I then plot a green Cross ontop of the squares for another data set (dataset3).If I do your suggestion, then the crosses are not seen.
I've tried this approach by calling my dataset 2 via
h2=plot.....
hsAnno = get(h2, 'Annotation');
hsLegend = get(hsAnno, 'LegendInformation');
set(hsLegend, 'IconDisplayStyle', 'off');
But no joy

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