how can i get same color graph in each iteration of for loop?

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shubham khodiyar
shubham khodiyar 2018-2-7
评论： Giovanni Bambini 2023-4-5
In my Matlab code, I am trying to merge two graphs in each iteration of for loop. I want the color of graph generated to be same for an iteration, but varying color with iteration

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采纳的回答

Birdman
Birdman 2018-2-7
One approach, notice how I used color property of plot:
x=1:10;
y=2*x;
for i=1:numel(x)
a=rand(1,3);
plot(x(i),y(i),'Marker','o','color',a);hold on;plot(x(i)+1,y(i),'Marker','o','color',a);hold on;
end
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Birdman
Birdman 2018-2-7
Change this line
plot(x(i),y(i),'Marker','o','color',a);hold on;plot(x(i)+1,y(i),'Marker','o','color',a);hold on;
to
plot(x(i),y(i),'Marker','o','color',a,'DisplayName',num2str(i));hold on;plot(x(i)+1,y(i),'Marker','o','color',a,'DisplayName',num2str(i));hold on;legend('show');
Giovanni Bambini
Giovanni Bambini 2023-4-5
Is there a way to simply save information of colors form plot, or reset the "Matlab color ordering"?

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更多回答（2 个）

Christopher Coello
Use the property Color when you plot the figure and the colormap of your choice (parula post 2014b, jet before)
g = randn(12,150);
h = randn(12,150)+5;
figure;c_map = parula(12);
for iR = 1:12
hAx=subplot(4,3,iR);hold(hAx,'on');
plot(g(iR,:),'Color',c_map(iR,:));
plot(h(iR,:),'Color',c_map(iR,:));
end
Sree Harsha Bhimineni
You can use a random function as follows:
for i=1:1:10
v = rand(3,1);
plot(X1,Y1,'Color',v);
hold on
plot(X2,Y2,'Color',v);
end

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