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Group the values of a graph in four

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Dionisio Mendoza
Dionisio Mendoza el 10 de Feb. de 2019
Cerrada: MATLAB Answer Bot el 20 de Ag. de 2021
I need to group in 4 the values of these two vectors of 1500 numbers ranging from -100 to 100, so that the following graph divided into 4 sections appears. I do not know whether to use axes or what procedure to execute
x=-100+(100+100)*rand(1500,1);
y=-100+(100+100)*rand(1500,1);
plot(x,y,'or')
  3 comentarios
Dionisio Mendoza
Dionisio Mendoza el 10 de Feb. de 2019
I want to divide that graph like this
Rena Berman
Rena Berman el 5 de Mzo. de 2019
(Answers Dev) Restored edit

Respuestas (1)

Walter Roberson
Walter Roberson el 11 de Feb. de 2019
group = (x <= 0) * 2 + (y <= 0) + 1;
pointsize = 15;
scatter(x, y, pointsize, group);
colormap(jet(4))
  4 comentarios
Dionisio Mendoza
Dionisio Mendoza el 11 de Feb. de 2019
i mean colors of each section
Walter Roberson
Walter Roberson el 11 de Feb. de 2019
You can create a 4 x 3 matrix of color values and colormap() that matrix.

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