How to plot multiple lines in a same figure using loop?

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Kazi Md. Munim
Kazi Md. Munim 2017-10-1
回答： KSSV 2018-6-22
I have a 3d matrix named cluster. I need to plot multiple lines in a same graph. For example if I have 3 clusters in my cluster matrix then I plot them using the line below:
plot(cluster(1:6,1,1),cluster(1:6,2,1),'*',cluster(1:3,1,2),cluster(1:3,2,2),'+',cluster(1:6,1,3),cluster(1:6,2,3),'o');
Graph output:
But the number of cluster may change dynamically. So I need to plot the lines using loop (I guess). How to do that?
  2 个评论
Image Analyst
Image Analyst 2017-10-1
Where are the endpoints of the lines? Where do you want the lines to go from, and to? Please attach image with desired result.
per isakson
per isakson 2017-10-1
marker = {'+','o',...};
plot( x(:,1), y(:,1), '*' )
hold on
for jj = 2 : N
plot( x(:,jj), y(:,jj), marker{jj} )
end

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回答（1 个）

KSSV
KSSV 2018-6-22
S = rand(1,3) ;
N = 100 ;
E = rand(N,3) ;
figure
hold on
S = repmat(S,N,1) ;
x = [S(:,1) E(:,1)] ;
y = [S(:,2) E(:,2)] ;
z = [S(:,3) E(:,3)] ;
plot3(x',y',z')

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