Example illustrating how to fit a 2-d histogram of type y=f(x)
****************************************
Minimizer is Linear / Migrad
Chi2 = 4501.58
NDf = 33
p0 = -0.47055 +/- 0.00713644
p1 = 10.8033 +/- 0.0124078
void fit2d()
{
Float_t x[
n] = {0.092,0.83,0.94,0.81,0.12,0.1};
TH2F *h2 =
new TH2F(
"h2",
"h2",40,0,1,40,0,10);
for (
Int_t i=0;i<100000;i++) {
}
}
R__EXTERN TRandom * gRandom
virtual Int_t IsInside(Double_t x, Double_t y) const
Return 1 if the point (x,y) is inside the polygon defined by the graph vertices 0 otherwise.
virtual TFitResultPtr Fit(const char *formula, Option_t *option="", Option_t *goption="", Double_t xmin=0, Double_t xmax=0)
Fit histogram with function fname.
virtual void Draw(Option_t *option="")
Draw this histogram with options.
2-D histogram with a float per channel (see TH1 documentation)}
TProfile * ProfileX(const char *name="_pfx", Int_t firstybin=1, Int_t lastybin=-1, Option_t *option="") const
Project a 2-D histogram into a profile histogram along X.
Int_t Fill(Double_t)
Invalid Fill method.
virtual Double_t Rndm()
Machine independent random number generator.
- Author
- Rene Brun
Definition in file fit2d.C.