Question

x=[1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8],y=[1,2,3,4,5,6,7,8,1,2,3,4,5,6,7,8] 怎么用matlab输出轨迹图？

要求：每个坐标值都被标记，比如plot（x,y,'*'）
1、但是重复多次出现的坐标值的能否使其标记变大；

Answer 1

类似于分岔图，不断比较
Y(2,:)=Y(1,:)-Y(2,:);
for k=2:length(Y)
f=k-1;
if Y(2,k)<0
if Y(2,f)>0
x=Y(1,k)-Y(2,k)*(Y(1,f)-Y(1,k))/(Y(2,f)-Y(2,k));
Z=[Z r+abs(x)*1i];
end
else
if Y(2,f)<0
x=Y(1,k)-Y(2,k)*(Y(1,f)-Y(1,k))/(Y(2,f)-Y(2,k));
Z=[Z r+abs(x)*1i];
end
end
end
end
plot(Z,'k.','markersize',0.5);

Answer 2

可以得 用if判断 然后标记变大