19 TH1F *
h =
new TH1F(
"h",
"My histogram",100,-3,3);
static void SetDefaultFitter(const char *name="")
static: set name of default fitter
TVirtualPad * cd(Int_t subpadnumber=0)
Set current canvas & pad.
1-D histogram with a float per channel (see TH1 documentation)}
virtual void Draw(Option_t *chopt="")
Draw this graph with its current attributes.
R__EXTERN TMinuit * gMinuit
virtual TObject * Contour(Int_t npoints=10, Int_t pa1=0, Int_t pa2=1)
Creates a TGraph object describing the n-sigma contour of a TMinuit fit.
virtual void FillRandom(const char *fname, Int_t ntimes=5000)
Fill histogram following distribution in function fname.
virtual void SetFillColor(Color_t fcolor)
virtual Int_t SetErrorDef(Double_t up)
To get the n-sigma contour the error def parameter "up" has to set to n^2.
virtual void Divide(Int_t nx=1, Int_t ny=1, Float_t xmargin=0.01, Float_t ymargin=0.01, Int_t color=0)
Automatic pad generation by division.
A Graph is a graphics object made of two arrays X and Y with npoints each.
virtual void Update()
Update canvas pad buffers.
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.