2楼: Originally posted by dbb627 at 2011-11-20 12:22:44:
插值；具体的可以采用线性或者样条插值

xy1=[1 1; 2 5; 3.5 2; 4.2 6; 5 8];
x1=xy1(:,1);y1=xy1(:,2);
xy2=[1.2 3; 1.3 6; 2.5 5; 2.9 6; 4.5 10; 5.1 15];
x2=xy2(:,1);y2=xy2(:,2);
x0=1:5;
yy1=spline(x1,y1,x0)
plot(x1,y1,'ob',x0,yy1,'*-r')
yy2=spline(x2,y2,x0)
figure;plot(x2,y2,'ob',x0,yy2,'*-r')

4楼: Originally posted by dbb627 at 2011-11-20 19:14:02:
matlab 编的插值
[code]
xy1=[1 1; 2 5; 3.5 2; 4.2 6; 5 8];
x1=xy1(:,1);y1=xy1(:,2);
xy2=[1.2 3; 1.3 6; 2.5 5; 2.9 6; 4.5 10; 5.1 15];
x2=xy2(:,1);y2=xy2(:,2);
x0=1:5;
yy1=spline(x1,y1,x0)
pl ...