Get lineseries handle

I'm trying to use set to set the display name of each legend label.

If I have:

h=plot();

Then try to do:

set(h(1),'DisplayName','data label')

It's not working. Do I have to set the legend to be displayed first or does this automatically display it then change the label of each data series?

Answer 1

[Patrick Kalita]

Setting the DisplayName property does not automatically show the legend. You still need to explicitly show the legend:

h = plot( 1:5, rand(1,5), 6:10, rand(1,5) );
set(h(1), 'DisplayName', 'some data');
set(h(2), 'DisplayName', 'more data');
legend show

Answer 2

[Fangjun Jiang]

If you want to change the legend, get the handle of the legend, or simply run legend() again.

plot(magic(3));
legend({'a','b','c'});
h=legend({'1','2','3'});
set(h,'string',{'first','second','third'});