How to plot a different symbol and symbol line for each plot inside this loop?

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juan sanchez 2021-11-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1597429-how-to-plot-a-different-symbol-and-symbol-line-for-each-plot-inside-this-loop

评论： DGM 2021-11-28

for j=1:3
    symbolList = ['o', 'x', 's', 'd','.', '^', 'v', '>', '<', '*','p','h','+'];
    symbol = sprintf('r%s-', symbolList(mod(j-1,length(symbolList))+1));
    plot(a(1,:),b(1,:).*25.4, symbol, 'LineWidth', 0.1);
    hold on
    plot(c(1,:),d(1,:).*25.4, symbol, 'LineWidth', 0.1);
    hold on
    plot(e(1,:),f(1,:).*25.4, symbol, 'LineWidth', 0.1);
    hold on
    
end %for 3 plots

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Walter Roberson 2021-11-28

What difficulty are you encountering?

juan sanchez 2021-11-28

Thank you, I wanted to numerically add in ascendinr order the next subsequent symbol for the 1st, 2nd and 3rd plots but I was confused. The accepted answer herein explains it better.

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Answer 1

DGM 2021-11-28

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https://ww2.mathworks.cn/matlabcentral/answers/1597429-how-to-plot-a-different-symbol-and-symbol-line-for-each-plot-inside-this-loop#answer_841839

编辑：DGM 2021-11-28

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I'm not sure why you're using a loop to create the same plots three times with different symbols. Are there other columns (of a,b,c etc) that need to be plotted as the loop increments?

Alternatively, do you mean to simply plot each of these three things once, but automatically using a unique symbol for each?

If that's the case, and your data doesn't lend itself to indexing, then you might consider turning symbol into a function. That way you can just do something like this:

symbolList = ['o', 'x', 's', 'd','.', '^', 'v', '>', '<', '*','p','h','+'];

symbol = @(k) sprintf('r%s-', symbolList(mod(k-1,length(symbolList))+1));

hold on

plot((1:10)+5, symbol(1), 'LineWidth', 0.1);

plot((1:10)+10, symbol(2), 'LineWidth', 0.1);

plot((1:10)+15, symbol(3), 'LineWidth', 0.1);

Obviously I'm just using placeholder data here.

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juan sanchez 2021-11-28

Thank you very much. I was confused and you clearly explained in words what I wanted to do. I guess I can do something similar for line type too. I need more practice to fully understand these functions. Great answer!!