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标题: 这个插值代码到底哪里错了嘛 [打印本页]
作者: gaoyuan_1993    时间: 2013-8-26 10:51
标题: 这个插值代码到底哪里错了嘛
A=load('频率.txt'); * F% j0 `/ d6 f4 m/ n2 W7 s, n* l
x=A(:,1);y = A(:,2);
' L. q6 e7 A6 b# ]z = A(:,3);2 {9 L5 M( s! o, R
xlin = linspace(min(x),max(x),30);7 [1 J5 x% d( u7 q. O8 h2 e
ylin = linspace(min(y),max(y),30);
* |: H& O3 i1 K  D& Z8 l: w) P[X,Y] = meshgrid(xlin,ylin);
! H: K+ a* [3 W2 c) v- u3 rZ=griddata(x,y,z,xlin,ylin,'cubic'); * P" J+ z& @+ |2 U3 V2 {0 D/ p
mesh(X,Y,Z) %interpolated
; J% J" D) W6 r' b) [axis tight; hold on
' E3 l3 ]! x7 @" G- Q+ Mplot3(x,y,z,'.','MarkerSize',15) %nonuniform8 ^  t0 K& x% T
4 J9 T9 }5 L% U* [5 k$ h
输入后会出现如下提示：
# p4 ?) p8 o0 k/ [, l" bError in ==> delaunayn at 81
9 Z5 l" i5 E* M1 Mt = qhullmx(x', 'd ', opt);
' Y! ]& J; [5 x) e! b1 S1 ~Error in ==> griddata>cubic at 1684 q: W. y7 z: H) A0 O
    tri = delaunayn([x(:) y(:)]);, \1 n$ x8 U: v, Z6 C$ Y8 q
Error in ==> griddata at 92" F4 Z+ V- q& {' O7 v$ P8 }
    zi = cubic(x,y,z,xi,yi,opt);1 p+ w+ [0 Q/ i
Error in ==> aa at 7
* h8 h3 h) o+ @% P0 t* z4 j0 }: tZ=griddata(x,y,z,xlin,ylin,'cubic');
$ M, e1 `0 n. |' F



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