How to define the parent axes for a legend object?

Hi there everyone. My trouble is a bit nerve cracking but I've been striding for a couple of hours with no solution.

Say, I've got a full screen sized figure object with a panel on the right inside of the figure frame and two axes on the left. One of the axes has 32 semi logarithmic plots within which only 5 of those plots needs to be defined in a corresponding legend box. Each of the 32 plots are defined with indexed parents and the ones to be legended have display names defined.

Yet the trouble is, when it comes to define the axes of the object to include the legend, it falters. Yes, I did try

"legend(hgrph(1:5),'Location','best');" or

"lgnd1=legend(hAx(1),hgrph(1:5),'Location','best');" or

"lgnd1=legend(hgrph(1:5),'Location','best',hAx(1));" or

"lgnd1=legend(hgrph(1:5),'Location','best');

lgnd1.Parent=hAx(1);" sequence.

commands, but none did work. Obviously 'hAx(1)' refers to the handle of the axes I want to legend and 'hgrph(1:5)' are the handles of the semilogx plots to be legended.

All of the hgrph(1:5) handled plots have their display names defined via the corresponding semilogx commands. Remember I've said I got 32 plots parented the same axes and I just need five of them to be legended.

Best wishes to save me out of this,

[Tolga Karabiyikoglu]

Just forgot, the command "legend(hgrph(1:5),'Location','best');" does work unless it is the only axes under the same figure, but the trouble arises with multiple axes objects.

[Adam]

The equivalent of

legend(hAx(1),hgrph(1:5),'Location','best')

seems to work fine for me when I create a figure with an axes containing 3 plots and create a legend containing just 2 of them.

You didn't actually say what you do get. Just saying something doesn't work is no help.

[Tolga Karabiyikoglu]

View the figure up, forget about the panel on the right, but on the upper axes on the left, there are more plots than captured in the corresponding legend. Yes- I 've got it at last. Don't bother to define 'Parent' option for plot objects, just something like

"hgrph(6:32).Annotation.LegendInformation.IconDisplayStyle = 'off';"

for the plots you don't want to be legended- the rest will be legended with just something like

"legend(hgrph(1:5),'location','best');"

[Adam]

Yes, I was originally considering suggesting that there is a setting you can apply to each individual plot that tells a legend whether or not to include it, but the ability to select subsets for legends (which I think is relatively new) seemed to render this rather an over the top way of doing it.

Good that you found a way that works though.

[Tolga Karabiyikoglu]

Considering my final solution was on Matlab 2018b....