how to generate the graph with different colors for the following code.

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jaah navi 2021-7-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/876308-how-to-generate-the-graph-with-different-colors-for-the-following-code

评论： Image Analyst 2021-7-11

[hAX,hLine1,hLine2] = plotyy(x, [y1; y5], x, [y2; y6], @(X,Y)semilogy(X,Y,'k'), @(X,Y)plot(X,Y,'k');
set(hLine1(1),'LineStyle','-','Marker','o');
set(hLine1(2),'LineStyle','-','Marker','*');
set(hLine2(1),'LineStyle','--','Marker','o');
set(hLine2(2),'LineStyle','--','Marker','*');

Here, I want each line to be represented in different colors instead of black colour. could anyone please help me on this.

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Answer 1

Image Analyst 2021-7-11

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https://ww2.mathworks.cn/matlabcentral/answers/876308-how-to-generate-the-graph-with-different-colors-for-the-following-code#answer_744393

在 MATLAB Online 中打开

Is there a 'Color' option you could use. For example

colorList = jet(numberOfLines) % eg jet(6);
set(hLine2(1),'LineStyle','--','Marker','o', 'Color', colorList(1, :));
% or
set(hLine2(1),'LineStyle','--','Marker','o', 'Color', 'r'); % Use red

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jaah navi 2021-7-11

在 MATLAB Online 中打开

I am getting error stating undefined function or variable 'numberOfLines'.

However I managed to get the graph using the following lines.

[hAX,hLine1,hLine2] = plotyy(x, [y1; y5], x, [y2; y6], @(X,Y)semilogy(X,Y), @(X,Y)plot(X,Y));
set(hLine2(1),'LineStyle','--','Marker','o', 'Color', 'r')

Thanks for your solution.

Image Analyst 2021-7-11

在 MATLAB Online 中打开

ColorOrder_demo.m

Well how many lines are you plotting? Two, right? So

numberOfLines = 2;

If you want more specific advice that you don't need to adapt, please attach x, y1, y2, y5, and y6 (all your data)

save('answers.mat', 'x', 'y1', 'y2', 'y5', 'y6');

then use the paperclip icon to attach it here.

Also, do you have any particular colors in mind? You can also make a list of line styles and marker shapes and do basically the same thing. But for only 2 curves, it's probably best not to generalize and just hard code in the color you want with the 'color' option.

See attached demo.

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