Changing plot line colour with multiple data sets

I have a plot with 9 different data sets but 2 are coming out as the same color.

plot(xcUpper,Cp0U,'-o','k','linewidth', 2)

hold on

plot(xcUpper,Cp5U,'-o','linewidth', 2)

plot(xcUpper,Cp10U,'-o','linewidth', 2)

plot(xcUpper,Cp15U,'-o','linewidth', 2)

plot(xcUpper,Cp20U,'-o','linewidth', 2)

plot(xcUpper,CpM5U,'-o','linewidth', 2)

plot(xcUpper,CpM10U,'-o','linewidth', 2)

plot(xcUpper,CpM15U,'-o','linewidth', 2)

plot(xcUpper,CpM20U,'-o','linewidth',2)

title('NACA23012 Cp Distribution (Upper Surface)')

grid on

grid minor

xlabel('x/c (m)','FontSize',18)

ylabel('Pressure Coefficient','FontSize', 18)

box on

set(gca,'GridLineStyle','-')

set(gca,'MinorGridLineStyle','-')

set(gca,'GridColor','k')

set(gca,'MinorGridColor','k')

legend('\alpha = 0^\circ','\alpha = 5^\circ','\alpha = 10^\circ','\alpha = 15^\circ'...

,'\alpha = -5^\circ','\alpha = -10^\circ','\alpha = -15^\circ','\alpha = -20^\circ')

ax = gca;

ax.FontSize = 15; % Font Size of 15

How can ensure each data set has a different color?

Answer 1

[Michael]

Create a color map and then give each one a distinct color.

figure;
thecolors = parula(9);
for i = 1:9
    plot(rand(5,1),rand(5,1),'Color',thecolors(i,:),'DisplayName',['Line Number = ',num2str(i)]);
    hold on;
end
legend('Location','best')

[Michael]

You can check this page to see all the colormaps available:

https://www.mathworks.com/help/matlab/ref/colormap.html

Alternatively, you can manually set colors using their RGB values

mycolor = [1 0.5 0.4];

[Michael]

@CAM Did this solution work for you? If so, please accept the answer so that others know that it works.

[jrz]

Yes it worked, thanks