Comments on: Legend ‘-DynamicLegend’ semi-documented feature

By: Stephan

Stephan — Thu, 12 Jan 2012 13:18:14 +0000

I was searching for a way to use a legend’s “refresh” function (that is available when right-clicking on the legend with the mouse) in a script. When I came across this post I first thought this was the way Matlab implemented the “refresh” functionality.
However, ‘DynamicLegend’ only seems to react to additions or deletions to the axes: switching the ‘Visibility’ of a line to ‘off’ or switching the legend entry off by

set(get(get(line_handle,'Annotation'),'LegendInformation'),'IconDisplayStyle','off')

is ignored by the ‘DynamicLegend’ feature. The “refresh” function correctly removes the corresponding legend entry in these cases.
Do you know how to use “refresh” from the command line?

By: Uitable sorting | Undocumented Matlab

Uitable sorting | Undocumented Matlab — Tue, 26 Jul 2011 18:03:51 +0000

[...] After many years in which the uitable was available but semi-documented and not officially supported in Matlab, it finally became fully documented and supported in R2008a [...]

By: handle2struct, struct2handle & Matlab 8.0 | Undocumented Matlab

handle2struct, struct2handle & Matlab 8.0 | Undocumented Matlab — Wed, 29 Dec 2010 18:02:59 +0000

[...] under the hood, hgsave uses the semi-documented built-in handle2struct function to convert the figure handle into a Matlab struct [...]

By: uitree | Undocumented Matlab

uitree | Undocumented Matlab — Wed, 11 Aug 2010 18:02:01 +0000

[...] uitools in the %matlabroot%/toolbox/matlab/uitools/ folder, uitree and its companion uitreenode are semi-documented, meaning that they have no support or doc-page, but do have readable help sections within [...]

By: Yair Altman

Yair Altman — Thu, 02 Jul 2009 19:16:57 +0000

Thanks Pietro.I plan to write a post about some of feature's features in the future. Keep a look-out for this on this blog. You can see this in my TODO list.So much to do, so little time...Yair

By: Pietro

Pietro — Thu, 02 Jul 2009 13:31:44 +0000

I was looking for an undocumented matlab feature named ‘feature’ and google luckied me here. Maybe you know something about. I tried

which feature

and I found out this ‘feature’ is an undocumented built-in function.

How I got across it?

I typed configinfo.m M-file attached to Matlab white paper on performance.

Nice blog, useful even for a beginner in Matlab as I am.

By: Ustun Ozgur

Ustun Ozgur — Fri, 05 Jun 2009 13:01:10 +0000

Thanks for this tip.
I was in a similar need, and was getting the legend cell via get, appending the new string, and setting the cell back.

leghandle = findall(gcf, 'tag', 'legend');
legstr = get(leg,'String');
% ensure legstr is a cell, not a string
if ischar(legstr), legstr = mat2cell(legstr); end
legstr(end+1) = {'New legend string'};

This seems much simpler.