Legend in columns with different size markers than in plot

Hello,

I would like to increase the size of the markers OMLY in the legend of a plot. The legend is in 2 columns.

Here what I have:

%Data
x1=1:10;
m1= x1+1.8*rand(1,10);
m2=3+m1;
m3=5+m1;
m4=6+m1;
err1=1.2*rand(1,10);
err2=1.2*rand(1,10);
err3=1.2*rand(1,10);
err4=1.2*rand(1,10);


%Figure
f=figure;
errorbar(x1,m1,err1,'^','Color', 'g','MarkerFaceColor','g','MarkerSize',8,'LineWidth',2)
hold on
errorbar(x1,m2,err2,'s','MarkerFaceColor','r','Color','r','MarkerSize',8,'LineWidth',2)
errorbar(x1,m3,err3,'d','Color', 'k','MarkerFaceColor','k','MarkerSize',8,'LineWidth',2)
errorbar(x1,m4,err4,'o','MarkerFaceColor','b','Color','b','MarkerSize',8,'LineWidth',2)

%plot size, position and format
set(gcf,'position',[550,250,1000,600])
set(gca,'fontname','calibri','box','off','FontSize', 30)
set(gca,'LineWidth',1,'TickLength',[0.025 0.025]);
set(gcf,'color','w');

%Axis labeling and format
xlabel('\textbf{L, }{\boldmath $\mathrm{mm}$}','Interpreter','latex', 'FontSize', 32,'fontweight','bold')
ylabel({'{\boldmath$\mathrm{\overline{Q}, \ mJ}$}'},'Interpreter','latex', 'FontSize', 32,'fontweight','bold')
set(gca,'XMinorTick','on','YMinorTick','on')
legend('Type 1','Type 2','Type 3','Type 4','Location','northwest','FontSize', 32,'NumColumns',2,'Box','off');

% Fake plots for the legend (didn't work)
% h(1)=errorbar(nan,nan,nan,'^','Color', 'g','MarkerFaceColor','g','MarkerSize',20,'LineWidth',2, 'DisplayName', 'Type 1');
% h(2)=errorbar(nan,nan,nan,'s','MarkerFaceColor','r','Color','r','MarkerSize',20,'LineWidth',2, 'DisplayName', 'Type 2');
% h(3)=errorbar(nan,nan,nan,'d','Color', 'k','MarkerFaceColor','k','MarkerSize',20,'LineWidth',2, 'DisplayName', 'Type 3');
% h(4)=errorbar(nan,nan,nan,'o','MarkerFaceColor','b','Color','b','MarkerSize',20,'LineWidth',2, 'DisplayName', 'Type 4');
% legend(h,'Location','northwest','FontSize', 32,'NumColumns',2,'Box','off');

%Plot full window
T = get(gca,'tightinset');
set(gca,'position',[T(1) T(2) 1-T(1)-T(3) 1-T(2)-T(4)]);
hold off

I tried the classic trick:

f=figure;
t1=errorbar(x1,m1,err1,'^','Color', 'g','MarkerFaceColor','g','MarkerSize',8,'LineWidth',2);
hold on
t2=errorbar(x1,m2,err2,'s','MarkerFaceColor','r','Color','r','MarkerSize',8,'LineWidth',2);
t3=errorbar(x1,m3,err3,'d','Color', 'k','MarkerFaceColor','k','MarkerSize',8,'LineWidth',2);
t4=errorbar(x1,m4,err4,'o','MarkerFaceColor','b','Color','b','MarkerSize',8,'LineWidth',2);

%plot size, position and format
set(gcf,'position',[550,250,1000,600])
set(gca,'fontname','calibri','box','off','FontSize', 30)
set(gca,'LineWidth',1,'TickLength',[0.025 0.025]);
set(gcf,'color','w');

%Axis labeling and format
xlabel('\textbf{L, }{\boldmath $\mathrm{mm}$}','Interpreter','latex', 'FontSize', 32,'fontweight','bold')
ylabel({'{\boldmath$\mathrm{\overline{Q}, \ mJ}$}'},'Interpreter','latex', 'FontSize', 32,'fontweight','bold')
set(gca,'XMinorTick','on','YMinorTick','on')
legend('Type 1','Type 2','Type 3','Type 4','Location','northwest','FontSize', 32,'NumColumns',2,'Box','off');

[h,icons,plots,legend_text] =legend([t1 t3 t2 t4],'Location','northwest','FontSize', 30,'NumColumns',2,'Box','off');
icons = findobj(icons, 'type', 'line');
set(icons, 'Markersize', 15);

But the legent is in one column. The one column problem appear every time I have x=legend(). Also the errorbar in the legent dissapear.

Also as you see in my code I tried to create fake plots to use these in the legend, but also didn't work. Any ideas?

Thank you in advance.

[Evangelos Stefanidis]

Hey guys can someone help?

Answer 1

[Evangelos Stefanidis]

Well I found a way to work around the problem. I made the whole plot smaller and the markers of the legend get bigger. So the new program is:

%Data
x1=1:10;
m1= x1+1.8*rand(1,10);
m2=3+m1;
m3=5+m1;
m4=6+m1;
err1=1.2*rand(1,10);
err2=1.2*rand(1,10);
err3=1.2*rand(1,10);
err4=1.2*rand(1,10);


%Figure
f=figure;
t1=errorbar(x1,m1,err1,'^','Color', 'g','MarkerFaceColor','g','MarkerSize',8,'LineWidth',2,'DisplayName','Type 1');
hold on
t2=errorbar(x1,m2,err2,'s','MarkerFaceColor','r','Color','r','MarkerSize',8,'LineWidth',2,'DisplayName','Type 2');
t3=errorbar(x1,m3,err3,'d','Color', 'k','MarkerFaceColor','k','MarkerSize',8,'LineWidth',2,'DisplayName','Type 3');
t4=errorbar(x1,m4,err4,'o','MarkerFaceColor','b','Color','b','MarkerSize',8,'LineWidth',2,'DisplayName','Type 4');

%plot size, position and format
set(gcf,'position',[550,250,705,408])
set(gca,'fontname','calibri','box','off','FontSize', 22)
set(gca,'LineWidth',1,'TickLength',[0.025 0.025]);
set(gcf,'color','w');

%Axis labeling and format
xlabel('\textbf{L, }{\boldmath $\mathrm{mm}$}','Interpreter','latex', 'FontSize', 24,'fontweight','bold')
ylabel({'{\boldmath$\mathrm{\overline{Q}, \ mJ}$}'},'Interpreter','latex', 'FontSize', 24,'fontweight','bold')
set(gca,'XMinorTick','on','YMinorTick','on')
legend([t1,t2,t3,t4],'Location','northwest','FontSize', 24,'NumColumns',2,'Box','off');


%Plot full window
T = get(gca,'tightinset');
set(gca,'position',[T(1) T(2) 1-T(1)-T(3) 1-T(2)-T(4)]);
hold off