MATLAB: Remove legend items from Figure

figurelegendMATLABplot

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:

Best Answer

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');
Related Question