I have 100 data scattered across 100 X 100 size plot. I need to partition the plot into four sub-sections across the center. Can anyone help me.

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HABILA 2019-7-12

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/471451-i-have-100-data-scattered-across-100-x-100-size-plot-i-need-to-partition-the-plot-into-four-sub-sec

评论： HABILA 2019-7-15

采纳的回答： Stephan

close all

clear

clc

n=100

for h=1:1

for i=1:1:n

if(i<=25)

S(i).xd=randi([0,40]);

S(i).yd=randi([0,40]);

end

if((i>25)&&(i<=50))

S(i).xd=randi([60,100]);

S(i).yd=randi([0,40]);

end

if((i>50)&&(i<=75))

S(i).xd=randi([0,40]);

S(i).yd=randi([60,100]);

end

if(i>75)

S(i).xd=randi([60,100]);

S(i).yd=randi([60,100]);

end

XR(i)=S(i).xd;

YR(i)=S(i).yd;

figure(1)

plot(XR(i),YR(i),'kp','MarkerSize', 8);

drawnow;

hold on;

end

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John Doe 2019-7-12

What's the purpose?

HABILA 2019-7-12

I want it to look more distinct.

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采纳的回答

Stephan 2019-7-14

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/471451-i-have-100-data-scattered-across-100-x-100-size-plot-i-need-to-partition-the-plot-into-four-sub-sec#answer_383142

starting from R2018b you can use xline and yline:

close all
clear
clc
n=100
hold on
for h=1:1
for i=1:1:n
  if(i<=25)
      S(i).xd=randi([0,40]);
      S(i).yd=randi([0,40]);
  end
  if((i>25)&&(i<=50))
      S(i).xd=randi([60,100]);
      S(i).yd=randi([0,40]);        
  end
  if((i>50)&&(i<=75))
      S(i).xd=randi([0,40]);
      S(i).yd=randi([60,100]);        
  end
  if(i>75)
      S(i).xd=randi([60,100]);
      S(i).yd=randi([60,100]);        
  end
  XR(i)=S(i).xd;
  YR(i)=S(i).yd;
  figure(1)
  plot(XR(i),YR(i),'kp','MarkerSize', 8);
  drawnow;
end
end
xline(50);
yline(50);
hold off

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Stephan 2019-7-14

编辑：Stephan 2019-7-14

then build them by hand:

x_line = [50 50; 0 100];
y_line = [0 100; 50 50];
plot(x_line(1,:),y_line(1,:),'k')
plot(x_line(2,:),y_line(2,:),'k')

HABILA 2019-7-15

This one worked perfect. Thank You so much.

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