Assigning different color in legend

I am using this code, but it's plotting same color for all the graphs. How can i assign different color for all of them. There is kind of 13/14 graph in one plot.

plot(xz,ys),hold on
            %subplot(1,2,2)
            %plot(x_0,y_0_diff,'o','markersize',7,xz,ys_diff)
            xlabel('1000/T [1/K]') 
            ylabel('Ignition delay time (ms)')
            h=legend("Experiment","M1","M2","M3","M4","M5","M6","M7","M8","M9","M10","M11","M12","location", "northwest");
            set (h, "fontsize", 7.9);

[madhan ravi]

Can you upload the data?

[Stephen23]

@Atta: what MATLAB version are you using?

Answer 1

[Pieter Hamming]

The 'r' in plot(xz,ys,'r') means 'red', telling MATLAB you want this line to be plotted in red. If you instead use plot(xz,ys) MATLAB will automatically assign a color.

[Mr. 206]

if i remove that it is plotting by default blue color(all the graphs)

[Pieter Hamming]

Can you try the following snippet and tell us what comes out?

ax=gca;
ax.ColorOrder

Answer 2

[Stephen23]

"How can i assign different color for all of them"

Each time you call plot is independent from the other calls, and so each time the colors start from the first color again. If you want to automatically cycle through the axes ColorOrder colors, then you should do any one of these:

• set the axes NextPlot property to 'add'.
• use hold on (only since MATLAB R2014b).
• use just one plot call.

Then you will get an automatic cycling of the line colors, from the axes ColorOrder:

https://www.mathworks.com/help/matlab/ref/matlab.graphics.axis.axes-properties.html#budumk7_sep_shared-ColorOrder

https://www.mathworks.com/help/matlab/creating_plots/defining-the-color-of-lines-for-plotting.html