[ROOT] 2d fit question

From: Maurizio Ungaro (ungaro@jlab.org)
Date: Thu Jul 04 2002 - 17:20:25 MEST


Dear root and physics enthusiastic,

I have a f(x,y) that in theory, for "right" values
of x,y is equal to zero.

However for real data I have f(x',y') different from
zero. 

Given dx' and dy', I want to find the x'' and y'' 
that are as closer as possible to satisfy 
f(x'', y'') =  0.

I imagine I can do this by hand, calculating some chi2 etc,
but I also imagine there's a (fit?) routine that does this already.


thanks!
Mauri



This archive was generated by hypermail 2b29 : Sat Jan 04 2003 - 23:50:58 MET