Legend not matching the data

I have weird data and not enough time to figure out the for loop stuff, so I did a basic plotting thing. But the legend is not matching my data. Is it the size of the legend or something?

j1 = plot(temp2412,original2412(:,1),'-o','Color',C6,'LineWidth',lw,'MarkerSize',ms,'MarkerEdgeColor',C6,'MarkerFaceColor',C6);

hold on

j2 = plot(temp2412,original2412(:,2),'-o','Color',C1,'LineWidth',lw,'MarkerSize',ms,'MarkerEdgeColor',C1,'MarkerFaceColor',C1);

j3 = plot(temp2412,original2412(:,3),'-o','Color',C3,'LineWidth',lw,'MarkerSize',ms,'MarkerEdgeColor',C3,'MarkerFaceColor',C3);

j4 = plot(temp3624,original3624(:,1),'-o','Color',C8,'LineWidth',lw,'MarkerSize',ms,'MarkerEdgeColor',C8,'MarkerFaceColor',C8);

j5 = plot(temp3018,original3018(:,1),'-o','Color',C10,'LineWidth',lw,'MarkerSize',ms,'MarkerEdgeColor',C10,'MarkerFaceColor',C10);

j6 = plot(temp2412,aged2412(:,1),'--o','Color',C6,'LineWidth',lw,'MarkerSize',ms,'MarkerEdgeColor',C6,'MarkerFaceColor',C6);

j7 = plot(temp2412,aged2412(:,2),'--o','Color',C1,'LineWidth',lw,'MarkerSize',ms,'MarkerEdgeColor',C1,'MarkerFaceColor',C1);

j8 = plot(temp2412,aged2412(:,3),'--o','Color',C3,'LineWidth',lw,'MarkerSize',ms,'MarkerEdgeColor',C3,'MarkerFaceColor',C3);

j9 = plot(temp3624,aged3624(:,1),'--o','Color',C8,'LineWidth',lw,'MarkerSize',ms,'MarkerEdgeColor',C8,'MarkerFaceColor',C8);

j10 = plot(temp3624,aged3624(:,2),'--o','Color',C10,'LineWidth',lw,'MarkerSize',ms,'MarkerEdgeColor',C10,'MarkerFaceColor',C10);

leg = [j1,j2,j3,j4,j5,j6,j7,j8,j9,j10];

xlim([-40 -6])

ylim([0 700]);

xlabel('Temperature (°C)','FontSize',fontsize);

ylabel('Stiffness (MPa)','FontSize',fontsize);

set(gca,'fontsize',22);

grid on

ax = gca;

legend(leg,'PEN 70/100 O','S-E1 O','S-E2 O','S-R1 O','S-R2 O','PEN 70/100 A','S-E1 A','S-E2 A','S-R1 A','S-R2 A');

Answer 1

[Star Strider]

It is possible to label the individual plots in the plot calls.

See Specify Legend Labels During Plotting Commands for details.

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[Herline van der Spuy]

I tried that, at first I thought it did not work. But then I changed one marker's symbol to a triangle. It does show the dashed line, the marker is just blocking it. So my new question would be: How to I increase the size of the legend thingy so as to show the dashed line.

[Star Strider]

That would probably require adjusting the Position property of the legend object.

Example —

x = 1:10;
y = rand(3,10);

figure
plot(x, y)
legend('Row 1','Row 2','Row 3', 'Location','NE')

figure
plot(x, y)
hleg = legend('Row 1','Row 2','Row 3', 'Location','NE');
lgdpos = hleg.Position;
hleg.Position = lgdpos+[-0.3 -0.25 0.3 0.25];
hleg.FontSize = 12;

Experiment with the other properties (if necessary) to get the desired result.

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