Re: Find a function that fits two dimensional data
- To: mathgroup at smc.vnet.net
- Subject: [mg67268] Re: Find a function that fits two dimensional data
- From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>
- Date: Thu, 15 Jun 2006 03:25:44 -0400 (EDT)
- Organization: Uni Leipzig
- References: <e6op8s$s2m$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi idealy you have a physical model that may be valid and you can add some coefficients to the model to obtain a better fit. For example, the physical model say the function should have the form Exp[-a*x] and you add (c+b*x)*Exp[-a*x] Regards Jens "Raj" <rajanikanth at gmail.com> schrieb im Newsbeitrag news:e6op8s$s2m$1 at smc.vnet.net... | 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 |