Aihong, Use the TGraphErrors class (derived from TGraph). Set the errors in Y and fit Rene Brun On Mon, 17 Jan 2000, Aihong Tang wrote: > Hi, > > I have a few points in a graph, some of them are trustable, some of them > are less trustable. Thus I wanna put a weight(like "trustable level") with > each points when I fit them. > > Is there a way, taking weights into account, to fit those points? > > Thanks! > > Aihong > > > >
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