Remove legend items from Figure

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shdotcom shdotcom
shdotcom shdotcom le 25 Jan 2019
In the figure, how to remove the item "aa" from the legennd without changing the shape of other items?
PointStyle = {'kp-', ...
'LineWidth', 1,...
'MarkerEdgeColor', 'k',...
'MarkerFaceColor', [0 0 .8],...
'MarkerSize',9};
plot(Points, PointStyle{:});
hold on
dataStyle = {'Marker','o', ...
'LineWidth', 1,...
'MarkerEdgeColor', [.8 0.4 0.2],...
'MarkerFaceColor', [1 .6 0.2],...
'MarkerSize',7};
plot(data, dataStyle{:});
if n <=3
%toDO
else
legend_str = {'aa','bb','cc'};
legend(legend_str, 'Fontsize',10,'Location', 'southoutside', 'Orientation','horizontal');
end
if n <=3
%toDO
else
legend_str = {'aa','bb','cc'};
legend(legend_str{2}, legend_str{3}, 'Fontsize',10,'Location', 'southoutside', 'Orientation','horizontal');
end
The shape of third item "cc" is changed:
  3 commentaires
shdotcom shdotcom
shdotcom shdotcom le 25 Jan 2019
Modifié(e) : shdotcom shdotcom le 25 Jan 2019
@madhan ravi Is it possible to do this without using figure handle?
Also, in my case , the dimensions of plots are not consistent.
I have edited the question
madhan ravi
madhan ravi le 25 Jan 2019
Ok see this example , see if this is what you want:
plot(1:10,'-*r')
hold on
plot(2*(1:10),'-vg')
plot(3*(1:10),'-ob')
h=get(gca,'Children'); % grab all the axes handles at once
legendstr={'aa','bb','cc'};
legend(h([1 3]),legendstr{[1 3]}) % see the second label is skipped withoud changing shape
hold off

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Réponse acceptée

Lucademicus
Lucademicus le 25 Jan 2019
You could do it based on the order of appearance of the plots.
Assuming 'aa' is plot first, then 'bb' and then 'cc':
figure;
hold on
plot(rand(4,1),rand(4,1),'r','DisplayName','Red')
plot(rand(4,1),rand(4,1),'g','DisplayName','Green')
plot(rand(4,1),rand(4,1),'b','DisplayName','Blue')
hPlots = flip(findall(gcf,'Type','Line')); % flipped, because the lines our found in reverse order of appearance.
legend_str = {'aa','bb','cc'};
legend(hPlots(2:3), legend_str(2:3), 'Fontsize',10,'Location', 'southoutside', 'Orientation','horizontal');
  1 commentaire
shdotcom shdotcom
shdotcom shdotcom le 25 Jan 2019
It is working!. Thank you. But, I could not undestand why my code is working when data size is [10,100] and it does not, when data size [5,200].

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