Change color of section graph

Dionisio Mendoza 님이 질문을 제출함. 11 Feb 2019

최근 활동 madhan ravi 님이 댓글을 추가함. 15 Feb 2019

Walter Roberson 님이 답변을 채택함.

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5c5d0af78d115-cuadrantes_graficas1.png

I need to change the color of each quadrant of the graph, in the code I know I have a map color, but I was wondering if it is possible to manually change each color.

x=-100+(100+100)*rand(1500,1);   
y=-100+(100+100)*rand(1500,1);   
group = (x <= 0) * 2 + (y <= 0) ; 
pointsize = 30; 
scatter(x, y, pointsize, group);     
colormap(jet(4))

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madhan ravi 15 Feb 2019

Editing question after someone has answered is highly discouraged in this forum.

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Walter Roberson 님의 답변 11 Feb 2019

채택된 답변

Instead of colormap(jet(4)) create the colormap you want as a 4 x 3 array and colormap() it.

cmap = [1 0 0;
        0 1 0;
        0 0 1;
        0 0 0];
colormap(cmap);

Note: your group variable will be 0, 1, 2, or 3 and so will not map directly to a colormap entry. The code I had suggested to you added 1 to group, getting 1, 2, 3, or 4.

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Dionisio Mendoza (view profile)