[代码资源] 这个插值代码到底哪里错了嘛

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gaoyuan_1993

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	开心 2014-6-8 17:06

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发表于 2013-8-26 10:51 |只看该作者 |正序浏览

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A=load('频率.txt');
x=A(:,1);y = A(:,2);
z = A(:,3);
xlin = linspace(min(x),max(x),30);
ylin = linspace(min(y),max(y),30);
[X,Y] = meshgrid(xlin,ylin);
Z=griddata(x,y,z,xlin,ylin,'cubic');
mesh(X,Y,Z) %interpolated
axis tight; hold on
plot3(x,y,z,'.','MarkerSize',15) %nonuniform

输入后会出现如下提示：
Error in ==> delaunayn at 81
t = qhullmx(x', 'd ', opt);
Error in ==> griddata>cubic at 168
tri = delaunayn([x(:) y(:)]);
Error in ==> griddata at 92
zi = cubic(x,y,z,xi,yi,opt);
Error in ==> aa at 7
Z=griddata(x,y,z,xlin,ylin,'cubic');

zan