virtual void SetLineWidth(Width_t lwidth)
Random number generator class based on M.
virtual Double_t Gaus(Double_t mean=0, Double_t sigma=1)
Samples a random number from the standard Normal (Gaussian) Distribution with the given mean and sigm...
virtual Int_t SetParameter(Int_t ipar, const char *parname, Double_t value, Double_t verr, Double_t vlow, Double_t vhigh)=0
TH1F * DrawFrame(Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax, const char *title="")
Draw an empty pad frame with X and Y axis.
static void SetDefaultFitter(const char *name="")
static: set name of default fitter
virtual Double_t GetParameter(Int_t ipar) const =0
virtual void SetFCN(void *fcn)
To set the address of the minimization objective function.
virtual void Draw(Option_t *chopt="")
Draw this graph with its current attributes.
void myfcn(Int_t &, Double_t *, Double_t &f, Double_t *par, Int_t)
virtual void SetGrid(Int_t valuex=1, Int_t valuey=1)
virtual void Draw(Option_t *option="")
Draw this ellipse with its current attributes.
virtual void SetLineColor(Color_t lcolor)
virtual Int_t ExecuteCommand(const char *command, Double_t *args, Int_t nargs)=0
virtual void SetMarkerStyle(Style_t mstyle=1)
virtual void Circle(Double_t &x, Double_t &y, Double_t r)
Generates random vectors, uniformly distributed over a circle of given radius.
void fitCircle(Int_t n=10000)
Abstract Base Class for Fitting.
virtual void SetPoint(Int_t i, Double_t x, Double_t y)
Set x and y values for point number i.
static TVirtualFitter * Fitter(TObject *obj, Int_t maxpar=25)
Static function returning a pointer to the current fitter.
A Graph is a graphics object made of two arrays X and Y with npoints each.
Double_t Sqrt(Double_t x)