How to assign a handle in set function for figures?

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Kian 2014-10-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/160322-how-to-assign-a-handle-in-set-function-for-figures

评论： Kian 2014-10-27

This does not work. It gives me error: Error using set Value must be a handle

I understand the problem, should make var in the last line to be a handle, but can't figure out how to fix it! and is it possible to assign different colors to each plot when m loops through.

 var = ['p' num2str(m)];
 eval([var '= plot(x,y);']);
 set(var,'Marker','o')

Thanks is advance.

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Image Analyst 2014-10-27

I don't have any idea what you're trying to do, but I'm sure that this is not the way to do it. It's wrong in more ways that one. Take a step back and give us the big picture, like you want to use different markers on different curves in your graph, or whatever...

Kian 2014-10-27

在 MATLAB Online 中打开

Basically what I'mm trying to do is plot several graphs into one figure, and assign each a different set of colors and markers. May be something like the following would better explain this considering x and y are updated in each loop (new datasets):

 for m = 1:5
   var = ['p' num2str(m)];
   eval([var '= plot(x,y);']);
   set(var,'Marker','o')
 end

but I want to use different markers though each loop for each graph.

Hope this explains the issue better.

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Answer 1

Chad Greene 2014-10-27

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链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/160322-how-to-assign-a-handle-in-set-function-for-figures#answer_156800

在 MATLAB Online 中打开

Does this do what you're looking for?

x = linspace(0,2*pi,100); 
markers = {'x','+','s','p','^'}; 
colors = colormap(jet(5)); 
LineWidths = 1:5; 
hold on
for k = 1:5
    h(k) = plot(x,randi(10)*sin(x*rand(1)),...
        'marker',markers{1},...
        'color',colors(k,:),...
        'linewidth',LineWidths(k)); 
end