Find a function that fits two dimensional data

*To*: mathgroup at smc.vnet.net*Subject*: [mg67240] Find a function that fits two dimensional data*From*: "Raj" <rajanikanth at gmail.com>*Date*: Wed, 14 Jun 2006 06:28:48 -0400 (EDT)*Sender*: owner-wri-mathgroup at wolfram.com

hi! Could somebody help me find a function that fits some two dimensional data that I have..the data is of the form {x,y,f(x,y)} and so far the function aa/(bb+cc Exp[-dd xy]) (where aa,bb,cc,dd are constants) seems to fit the data best but it is not quite accurate fit. I have used findfit to find this function. Is there a better way to find an exact function or should I keep experimenting? :-) Thanks, Raj