MATLAB: How to change the properties of legend

legendMATLABplot

INTRO: Hi, I use the command pulsewidth(data,time) to display the width of peaks as described in the example below:
clear all; close all;
% DATA GENERATION
Fs = 1000;
time = 0:1/Fs:1;
Frq = 10;
data = sin(2*pi*time*Frq);
% CALCULATE AND PLOT PULSEWIDTH
pulsewidth(data,time);figure(gcf);
legend('Location', 'NorthEast');
% PLOT PROPERTIES
box on;
set(gca,'FontSize',18, 'FontName','Arial', 'FontWeight','bold','Color','w','LineWidth',3);
xlabel('TIME','FontSize',18, 'FontName','Arial','FontWeight','bold');
ylabel('AMPLITUDE','FontSize',18, 'FontName','Arial','FontWeight','bold');
scrsz = get(0,'ScreenSize'); set(gcf,'Position',scrsz,'PaperPositionMode','auto');
QUESTION: How can I change the thickness of the lines and the sizes of the symbols displayed in the legend?
This legend is generated automatic with the command pulsewidth and I don't have access to the data. The only thing I could do until now was to fix the location of the legend.
I hope someone knows how to help me.
Thanks in advance
Emerson

Best Answer

From the doc for legend --
LEGH = legend returns the handle to legend on the current axes or empty if none exists.
So, after your call to pulsewidth, include
lh=legend; % return the legend handle
then you can do whatever you want w/ the properties thereof