Date: Dec 10, 2012 6:41 PM
Author: rajkrai@gmail.com
Subject: define matrix in griddata function

Hi: For example I have a matrix as following, 

x = [1.0 1.2 3.0 4.0];
y = [2.0 2.7 4.1 5.0];
M = [1.1  x    x     x;
     x    1.3  2.1   x; 
     2.2  x    x     1.6; 
     x    x    1.5   1.8];

[xi yi]= meshgrid(1:4,2:5);
zi = griddata(x,y,M,xi,yi);

In M, all x are holes (have no value). My question is how can I give value M in griddata function above to interpolate the scattered data into the holes x in M? 

I appreciate your help. 

-raj