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ROOT
6.07/01
Reference Guide
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ROOT
6.07/01
Reference Guide
|
Public Member Functions | |
| TF3 () | |
| TF3 (const char *name, const char *formula, Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1, Double_t zmin=0, Double_t zmax=1) | |
| F3 constructor using a formula definition. More... | |
| TF3 (const char *name, Double_t(*fcn)(Double_t *, Double_t *), Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1, Double_t zmin=0, Double_t zmax=1, Int_t npar=0, Int_t ndim=3) | |
| F3 constructor using a pointer to real function. More... | |
| TF3 (const char *name, Double_t(*fcn)(const Double_t *, const Double_t *), Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1, Double_t zmin=0, Double_t zmax=1, Int_t npar=0, Int_t ndim=3) | |
| F3 constructor using a pointer to real function—. More... | |
| TF3 (const char *name, ROOT::Math::ParamFunctor f, Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1, Double_t zmin=0, Double_t zmax=1, Int_t npar=0, Int_t ndim=3) | |
| F3 constructor using a ParamFunctor. More... | |
| template<class PtrObj , typename MemFn > | |
| TF3 (const char *name, const PtrObj &p, MemFn memFn, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax, Int_t npar, Int_t ndim=3) | |
| template<class PtrObj , typename MemFn > | |
| TF3 (const char *name, const PtrObj &p, MemFn memFn, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax, Int_t npar, const char *, const char *) | |
| Backward compatible ctor. More... | |
| template<typename Func > | |
| TF3 (const char *name, Func f, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax, Int_t npar, Int_t ndim=3) | |
| template<typename Func > | |
| TF3 (const char *name, Func f, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax, Int_t npar, const char *) | |
| backward compatible ctor More... | |
| TF3 (const TF3 &f3) | |
| Copy constructor. More... | |
| TF3 & | operator= (const TF3 &rhs) |
| Operator =. More... | |
| virtual | ~TF3 () |
| F3 default destructor. More... | |
| virtual void | Copy (TObject &f3) const |
| Copy this F3 to a new F3. More... | |
| virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
| Compute distance from point px,py to a function. More... | |
| virtual void | Draw (Option_t *option="") |
| Draw this function with its current attributes. More... | |
| virtual TObject * | DrawDerivative (Option_t *="al") |
| Draw derivative of this function. More... | |
| virtual TObject * | DrawIntegral (Option_t *="al") |
| Draw integral of this function. More... | |
| virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
| Execute action corresponding to one event. More... | |
| virtual Double_t | GetMinimumXYZ (Double_t &x, Double_t &y, Double_t &z) |
| Compute the X, Y and Z values corresponding to the minimum value of the function on its range. More... | |
| virtual Double_t | GetMaximumXYZ (Double_t &x, Double_t &y, Double_t &z) |
| Compute the X, Y and Z values corresponding to the maximum value of the function on its range. More... | |
| Int_t | GetNpz () const |
| virtual void | GetRandom3 (Double_t &xrandom, Double_t &yrandom, Double_t &zrandom) |
| Return 3 random numbers following this function shape. More... | |
| virtual void | GetRange (Double_t &xmin, Double_t &xmax) const |
| Return range of a 1-D function. More... | |
| virtual void | GetRange (Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) const |
| Return range of a 2-D function. More... | |
| virtual void | GetRange (Double_t &xmin, Double_t &ymin, Double_t &zmin, Double_t &xmax, Double_t &ymax, Double_t &zmax) const |
| Return range of function. More... | |
| virtual Double_t | GetSave (const Double_t *x) |
| Get value corresponding to X in array of fSave values. More... | |
| virtual Double_t | GetZmin () const |
| virtual Double_t | GetZmax () const |
| virtual Double_t | Integral (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsrel=1.e-6) |
| Return Integral of a 3d function in range [ax,bx],[ay,by],[az,bz] with a desired relative accuracy. More... | |
| virtual Bool_t | IsInside (const Double_t *x) const |
| Return kTRUE is the point is inside the function range. More... | |
| virtual TH1 * | CreateHistogram () |
| Create a histogram for axis range. More... | |
| virtual void | Paint (Option_t *option="") |
| Paint this 3-D function with its current attributes. More... | |
| virtual void | Save (Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Double_t zmin, Double_t zmax) |
| Save values of function in array fSave. More... | |
| virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
| Save primitive as a C++ statement(s) on output stream out. More... | |
| virtual void | SetClippingBoxOff () |
| Set the function clipping box (for drawing) "off". More... | |
| virtual void | SetClippingBoxOn (Double_t xclip=0, Double_t yclip=0, Double_t zclip=0) |
| Set the function clipping box (for drawing) "on" and define the clipping box. More... | |
| virtual void | SetNpz (Int_t npz=30) |
| Set the number of points used to draw the function. More... | |
| virtual void | SetRange (Double_t xmin, Double_t xmax) |
| Initialize the upper and lower bounds to draw the function. More... | |
| virtual void | SetRange (Double_t xmin, Double_t ymin, Double_t xmax, Double_t ymax) |
| Initialize the upper and lower bounds to draw the function-. More... | |
| virtual void | SetRange (Double_t xmin, Double_t ymin, Double_t zmin, Double_t xmax, Double_t ymax, Double_t zmax) |
| Initialize the upper and lower bounds to draw the function. More... | |
| virtual Double_t | Moment3 (Double_t nx, Double_t ax, Double_t bx, Double_t ny, Double_t ay, Double_t by, Double_t nz, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
| Return x^nx * y^ny * z^nz moment of a 3d function in range [ax,bx],[ay,by],[az,bz]. More... | |
| virtual Double_t | CentralMoment3 (Double_t nx, Double_t ax, Double_t bx, Double_t ny, Double_t ay, Double_t by, Double_t nz, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
| Return x^nx * y^ny * z^nz central moment of a 3d function in range [ax,bx],[ay,by],[az,bz]. More... | |
| virtual Double_t | Mean3X (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
| virtual Double_t | Mean3Y (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
| virtual Double_t | Mean3Z (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
| virtual Double_t | Variance3X (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
| virtual Double_t | Variance3Y (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
| virtual Double_t | Variance3Z (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
| virtual Double_t | Covariance3XY (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
| virtual Double_t | Covariance3XZ (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
| virtual Double_t | Covariance3YZ (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t az, Double_t bz, Double_t epsilon=0.000001) |
 Public Member Functions inherited from TF2 | |
| TF2 () | |
| TF2 (const char *name, const char *formula, Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1) | |
| F2 constructor using a formula definition. More... | |
| TF2 (const char *name, Double_t(*fcn)(Double_t *, Double_t *), Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1, Int_t npar=0, Int_t ndim=2) | |
| F2 constructor using a pointer to a compiled function. More... | |
| TF2 (const char *name, Double_t(*fcn)(const Double_t *, const Double_t *), Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1, Int_t npar=0, Int_t ndim=2) | |
| F2 constructor using a pointer to a compiled function. More... | |
| TF2 (const char *name, ROOT::Math::ParamFunctor f, Double_t xmin=0, Double_t xmax=1, Double_t ymin=0, Double_t ymax=1, Int_t npar=0, Int_t ndim=2) | |
| F2 constructor using a ParamFunctor, a functor class implementing operator() (double *, double *) More... | |
| template<class PtrObj , typename MemFn > | |
| TF2 (const char *name, const PtrObj &p, MemFn memFn, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Int_t npar, Int_t ndim=2) | |
| template<class PtrObj , typename MemFn > | |
| TF2 (const char *name, const PtrObj &p, MemFn memFn, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Int_t npar, const char *, const char *) | |
| backward compatible ctor More... | |
| template<typename Func > | |
| TF2 (const char *name, Func f, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Int_t npar, Int_t ndim=2) | |
| template<typename Func > | |
| TF2 (const char *name, Func f, Double_t xmin, Double_t xmax, Double_t ymin, Double_t ymax, Int_t npar, const char *) | |
| backward compatible ctor More... | |
| TF2 (const TF2 &f2) | |
| Copy constructor. More... | |
| TF2 & | operator= (const TF2 &rhs) |
| Operator =. More... | |
| virtual | ~TF2 () |
| F2 default destructor. More... | |
| virtual TF1 * | DrawCopy (Option_t *option="") const |
| Draw a copy of this function with its current attributes-*. More... | |
| virtual Int_t | GetContour (Double_t *levels=0) |
| Return contour values into array levels. More... | |
| virtual Double_t | GetContourLevel (Int_t level) const |
| Return the number of contour levels. More... | |
| Int_t | GetNpy () const |
| virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
| Redefines TObject::GetObjectInfo. More... | |
| Double_t | GetRandom () |
| Return a random number following this function shape. More... | |
| Double_t | GetRandom (Double_t xmin, Double_t xmax) |
| Return a random number following this function shape. More... | |
| virtual void | GetRandom2 (Double_t &xrandom, Double_t &yrandom) |
| Return 2 random numbers following this function shape. More... | |
| virtual Double_t | GetMinimumXY (Double_t &x, Double_t &y) const |
| Compute the X and Y values corresponding to the minimum value of the function. More... | |
| virtual Double_t | GetMaximumXY (Double_t &x, Double_t &y) const |
| Compute the X and Y values corresponding to the maximum value of the function. More... | |
| virtual Double_t | GetMinimum (Double_t *x) const |
| Return minimum/maximum value of the function. More... | |
| virtual Double_t | GetMaximum (Double_t *x) const |
| Return maximum value of the function See TF2::GetMinimum. More... | |
| virtual Double_t | GetYmin () const |
| virtual Double_t | GetYmax () const |
| virtual Double_t | Integral (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsrel=1.e-6) |
| Return Integral of a 2d function in range [ax,bx],[ay,by] with desired relative accuracy (default value of eps is 1.e-9) More... | |
| virtual void | SetNpy (Int_t npy=100) |
| Set the number of points used to draw the function. More... | |
| virtual void | SetContour (Int_t nlevels=20, const Double_t *levels=0) |
| Set the number and values of contour levels. More... | |
| virtual void | SetContourLevel (Int_t level, Double_t value) |
| Set value for one contour level. More... | |
| virtual Double_t | Moment2 (Double_t nx, Double_t ax, Double_t bx, Double_t ny, Double_t ay, Double_t by, Double_t epsilon=0.000001) |
| Return x^nx * y^ny moment of a 2d function in range [ax,bx],[ay,by]. More... | |
| virtual Double_t | CentralMoment2 (Double_t nx, Double_t ax, Double_t bx, Double_t ny, Double_t ay, Double_t by, Double_t epsilon=0.000001) |
| Return x^nx * y^ny central moment of a 2d function in range [ax,bx],[ay,by]. More... | |
| virtual Double_t | Mean2X (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsilon=0.000001) |
| virtual Double_t | Mean2Y (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsilon=0.000001) |
| virtual Double_t | Variance2X (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsilon=0.000001) |
| virtual Double_t | Variance2Y (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsilon=0.000001) |
| virtual Double_t | Covariance2XY (Double_t ax, Double_t bx, Double_t ay, Double_t by, Double_t epsilon=0.000001) |
| Public Member Functions inherited from TF1 | |
| TF1 () | |
| TF1 default constructor. More... | |
| TF1 (const char *name, const char *formula, Double_t xmin=0, Double_t xmax=1) | |
| F1 constructor using a formula definition. More... | |
| TF1 (const char *name, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim=1) | |
| F1 constructor using name of an interpreted function. More... | |
| TF1 (const char *name, Double_t(*fcn)(Double_t *, Double_t *), Double_t xmin=0, Double_t xmax=1, Int_t npar=0, Int_t ndim=1) | |
| Constructor using a pointer to a real function. More... | |
| TF1 (const char *name, Double_t(*fcn)(const Double_t *, const Double_t *), Double_t xmin=0, Double_t xmax=1, Int_t npar=0, Int_t ndim=1) | |
| Constructor using a pointer to real function. More... | |
| TF1 (const char *name, ROOT::Math::ParamFunctor f, Double_t xmin=0, Double_t xmax=1, Int_t npar=0, Int_t ndim=1) | |
| Constructor using the Functor class. More... | |
| template<typename Func > | |
| TF1 (const char *name, Func f, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim=1) | |
| ctor implementation More... | |
| template<typename Func > | |
| TF1 (const char *name, Func f, Double_t xmin, Double_t xmax, Int_t npar, const char *) | |
| template<class PtrObj , typename MemFn > | |
| TF1 (const char *name, const PtrObj &p, MemFn memFn, Double_t xmin, Double_t xmax, Int_t npar, Int_t ndim=1) | |
| template<class PtrObj , typename MemFn > | |
| TF1 (const char *name, const PtrObj &p, MemFn memFn, Double_t xmin, Double_t xmax, Int_t npar, const char *, const char *) | |
| TF1 (const TF1 &f1) | |
| TF1 & | operator= (const TF1 &rhs) |
| Operator =. More... | |
| virtual | ~TF1 () |
| TF1 default destructor. More... | |
| virtual void | AddParameter (const TString &name, Double_t value) |
| virtual Bool_t | AddToGlobalList (Bool_t on=kTRUE) |
| Add to global list of functions (gROOT->GetListOfFunctions() ) return previous status (true of functions was already in the list false if not) More... | |
| virtual void | Browse (TBrowser *b) |
| Browse. More... | |
| virtual Double_t | Derivative (Double_t x, Double_t *params=0, Double_t epsilon=0.001) const |
| Returns the first derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas
\[ D(h) = \frac{f(x+h) - f(x-h)}{2h} \] the final estimate \[ D = \frac{4D(h/2) - D(h)}{3} \] "Numerical Methods for Scientists and Engineers", H.M.Antia, 2nd edition". More... | |
| virtual Double_t | Derivative2 (Double_t x, Double_t *params=0, Double_t epsilon=0.001) const |
| Returns the second derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas
\[ D(h) = \frac{f(x+h) - 2f(x) + f(x-h)}{h^{2}} \] the final estimate \[ D = \frac{4D(h/2) - D(h)}{3} \] "Numerical Methods for Scientists and Engineers", H.M.Antia, 2nd edition". More... | |
| virtual Double_t | Derivative3 (Double_t x, Double_t *params=0, Double_t epsilon=0.001) const |
| Returns the third derivative of the function at point x, computed by Richardson's extrapolation method (use 2 derivative estimates to compute a third, more accurate estimation) first, derivatives with steps h and h/2 are computed by central difference formulas
\[ D(h) = \frac{f(x+2h) - 2f(x+h) + 2f(x-h) - f(x-2h)}{2h^{3}} \] the final estimate \[ D = \frac{4D(h/2) - D(h)}{3} \] "Numerical Methods for Scientists and Engineers", H.M.Antia, 2nd edition". More... | |
| virtual void | DrawF1 (Double_t xmin, Double_t xmax, Option_t *option="") |
| Draw function between xmin and xmax. More... | |
| virtual Double_t | Eval (Double_t x, Double_t y=0, Double_t z=0, Double_t t=0) const |
| Evaluate this function. More... | |
| virtual Double_t | EvalPar (const Double_t *x, const Double_t *params=0) |
| Evaluate function with given coordinates and parameters. More... | |
| virtual Double_t | operator() (Double_t x, Double_t y=0, Double_t z=0, Double_t t=0) const |
| virtual Double_t | operator() (const Double_t *x, const Double_t *params=0) |
| virtual void | FixParameter (Int_t ipar, Double_t value) |
| Fix the value of a parameter The specified value will be used in a fit operation. More... | |
| Double_t | GetChisquare () const |
| virtual TH1 * | GetHistogram () const |
| Return a pointer to the histogram used to vusualize the function. More... | |
| virtual TFormula * | GetFormula () |
| virtual const TFormula * | GetFormula () const |
| virtual TString | GetExpFormula (Option_t *option="") const |
| virtual const TObject * | GetLinearPart (Int_t i) const |
| virtual Double_t | GetMaximum (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const |
| Returns the maximum value of the function. More... | |
| virtual Double_t | GetMinimum (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const |
| Returns the minimum value of the function on the (xmin, xmax) interval. More... | |
| virtual Double_t | GetMaximumX (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const |
| Returns the X value corresponding to the maximum value of the function. More... | |
| virtual Double_t | GetMinimumX (Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const |
| Returns the X value corresponding to the minimum value of the function on the (xmin, xmax) interval. More... | |
| virtual Double_t | GetMaximumStored () const |
| virtual Double_t | GetMinimumStored () const |
| virtual Int_t | GetNpar () const |
| virtual Int_t | GetNdim () const |
| virtual Int_t | GetNDF () const |
| Return the number of degrees of freedom in the fit the fNDF parameter has been previously computed during a fit. More... | |
| virtual Int_t | GetNpx () const |
| TMethodCall * | GetMethodCall () const |
| virtual Int_t | GetNumber () const |
| virtual Int_t | GetNumberFreeParameters () const |
| Return the number of free parameters. More... | |
| virtual Int_t | GetNumberFitPoints () const |
| TObject * | GetParent () const |
| virtual Double_t | GetParameter (Int_t ipar) const |
| virtual Double_t | GetParameter (const TString &name) const |
| virtual Double_t * | GetParameters () const |
| virtual void | GetParameters (Double_t *params) |
| virtual const char * | GetParName (Int_t ipar) const |
| virtual Int_t | GetParNumber (const char *name) const |
| virtual Double_t | GetParError (Int_t ipar) const |
| Return value of parameter number ipar. More... | |
| virtual const Double_t * | GetParErrors () const |
| virtual void | GetParLimits (Int_t ipar, Double_t &parmin, Double_t &parmax) const |
| Return limits for parameter ipar. More... | |
| virtual Double_t | GetProb () const |
| Return the fit probability. More... | |
| virtual Int_t | GetQuantiles (Int_t nprobSum, Double_t *q, const Double_t *probSum) |
| Compute Quantiles for density distribution of this function. More... | |
| virtual Double_t | GetX (Double_t y, Double_t xmin=0, Double_t xmax=0, Double_t epsilon=1.E-10, Int_t maxiter=100, Bool_t logx=false) const |
| Returns the X value corresponding to the function value fy for (xmin<x<xmax). More... | |
| virtual Double_t | GetXmin () const |
| virtual Double_t | GetXmax () const |
| TAxis * | GetXaxis () const |
| Get x axis of the function. More... | |
| TAxis * | GetYaxis () const |
| Get y axis of the function. More... | |
| TAxis * | GetZaxis () const |
| Get z axis of the function. (In case this object is a TF2 or TF3) More... | |
| virtual Double_t | GetVariable (const TString &name) |
| virtual Double_t | GradientPar (Int_t ipar, const Double_t *x, Double_t eps=0.01) |
| Compute the gradient (derivative) wrt a parameter ipar. More... | |
| virtual void | GradientPar (const Double_t *x, Double_t *grad, Double_t eps=0.01) |
| Compute the gradient wrt parameters. More... | |
| virtual void | InitArgs (const Double_t *x, const Double_t *params) |
| Initialize parameters addresses. More... | |
| virtual Double_t | Integral (Double_t a, Double_t b, Double_t epsrel=1.e-12) |
| IntegralOneDim or analytical integral. More... | |
| virtual Double_t | IntegralOneDim (Double_t a, Double_t b, Double_t epsrel, Double_t epsabs, Double_t &err) |
| Return Integral of function between a and b using the given parameter values and relative and absolute tolerance. More... | |
| virtual Double_t | IntegralError (Double_t a, Double_t b, const Double_t *params=0, const Double_t *covmat=0, Double_t epsilon=1.E-2) |
| Return Error on Integral of a parameteric function between a and b due to the parameter uncertainties. More... | |
| virtual Double_t | IntegralError (Int_t n, const Double_t *a, const Double_t *b, const Double_t *params=0, const Double_t *covmat=0, Double_t epsilon=1.E-2) |
| Return Error on Integral of a parameteric function with dimension larger tan one between a[] and b[] due to the parameters uncertainties. More... | |
| virtual Double_t | IntegralFast (Int_t num, Double_t *x, Double_t *w, Double_t a, Double_t b, Double_t *params=0, Double_t epsilon=1e-12) |
| Gauss-Legendre integral, see CalcGaussLegendreSamplingPoints. More... | |
| virtual Double_t | IntegralMultiple (Int_t n, const Double_t *a, const Double_t *b, Int_t maxpts, Double_t epsrel, Double_t epsabs, Double_t &relerr, Int_t &nfnevl, Int_t &ifail) |
| This function computes, to an attempted specified accuracy, the value of the integral. More... | |
| virtual Double_t | IntegralMultiple (Int_t n, const Double_t *a, const Double_t *b, Int_t, Int_t maxpts, Double_t epsrel, Double_t &relerr, Int_t &nfnevl, Int_t &ifail) |
| virtual Double_t | IntegralMultiple (Int_t n, const Double_t *a, const Double_t *b, Double_t epsrel, Double_t &relerr) |
| See more general prototype below. More... | |
| virtual Bool_t | IsEvalNormalized () const |
| virtual Bool_t | IsLinear () const |
| virtual Bool_t | IsValid () const |
| Return kTRUE if the function is valid. More... | |
| virtual void | Print (Option_t *option="") const |
| Print TNamed name and title. More... | |
| virtual void | ReleaseParameter (Int_t ipar) |
| Release parameter number ipar If used in a fit, the parameter can vary freely. More... | |
| virtual void | SetChisquare (Double_t chi2) |
| virtual void | SetFitResult (const ROOT::Fit::FitResult &result, const Int_t *indpar=0) |
| Set the result from the fit parameter values, errors, chi2, etc... More... | |
| template<class PtrObj , typename MemFn > | |
| void | SetFunction (PtrObj &p, MemFn memFn) |
| template<typename Func > | |
| void | SetFunction (Func f) |
| virtual void | SetMaximum (Double_t maximum=-1111) |
| Set the maximum value along Y for this function In case the function is already drawn, set also the maximum in the helper histogram. More... | |
| virtual void | SetMinimum (Double_t minimum=-1111) |
| Set the minimum value along Y for this function In case the function is already drawn, set also the minimum in the helper histogram. More... | |
| virtual void | SetNDF (Int_t ndf) |
| Set the number of degrees of freedom ndf should be the number of points used in a fit - the number of free parameters. More... | |
| virtual void | SetNumberFitPoints (Int_t npfits) |
| virtual void | SetNormalized (Bool_t flag) |
| virtual void | SetNpx (Int_t npx=100) |
| Set the number of points used to draw the function. More... | |
| virtual void | SetParameter (Int_t param, Double_t value) |
| virtual void | SetParameter (const TString &name, Double_t value) |
| virtual void | SetParameters (const Double_t *params) |
| virtual void | SetParameters (Double_t p0, Double_t p1, Double_t p2=0, Double_t p3=0, Double_t p4=0, Double_t p5=0, Double_t p6=0, Double_t p7=0, Double_t p8=0, Double_t p9=0, Double_t p10=0) |
| virtual void | SetParName (Int_t ipar, const char *name) |
| Set name of parameter number ipar. More... | |
| virtual void | SetParNames (const char *name0="p0", const char *name1="p1", const char *name2="p2", const char *name3="p3", const char *name4="p4", const char *name5="p5", const char *name6="p6", const char *name7="p7", const char *name8="p8", const char *name9="p9", const char *name10="p10") |
| Set up to 10 parameter names. More... | |
| virtual void | SetParError (Int_t ipar, Double_t error) |
| Set error for parameter number ipar. More... | |
| virtual void | SetParErrors (const Double_t *errors) |
| Set errors for all active parameters when calling this function, the array errors must have at least fNpar values. More... | |
| virtual void | SetParLimits (Int_t ipar, Double_t parmin, Double_t parmax) |
| Set limits for parameter ipar. More... | |
| virtual void | SetParent (TObject *p=0) |
| virtual void | SetSavedPoint (Int_t point, Double_t value) |
| Restore value of function saved at point. More... | |
| virtual void | SetTitle (const char *title="") |
| Set function title if title has the form "fffffff;xxxx;yyyy", it is assumed that the function title is "fffffff" and "xxxx" and "yyyy" are the titles for the X and Y axis respectively. More... | |
| virtual void | Update () |
| Called by functions such as SetRange, SetNpx, SetParameters to force the deletion of the associated histogram or Integral. More... | |
| virtual Double_t | Moment (Double_t n, Double_t a, Double_t b, const Double_t *params=0, Double_t epsilon=0.000001) |
| Return nth moment of function between a and b. More... | |
| virtual Double_t | CentralMoment (Double_t n, Double_t a, Double_t b, const Double_t *params=0, Double_t epsilon=0.000001) |
| Return nth central moment of function between a and b (i.e the n-th moment around the mean value) More... | |
| virtual Double_t | Mean (Double_t a, Double_t b, const Double_t *params=0, Double_t epsilon=0.000001) |
| virtual Double_t | Variance (Double_t a, Double_t b, const Double_t *params=0, Double_t epsilon=0.000001) |
| Public Member Functions inherited from TNamed | |
| TNamed () | |
| TNamed (const char *name, const char *title) | |
| TNamed (const TString &name, const TString &title) | |
| TNamed (const TNamed &named) | |
| TNamed & | operator= (const TNamed &rhs) |
| TNamed assignment operator. More... | |
| virtual | ~TNamed () |
| virtual void | Clear (Option_t *option="") |
| Set name and title to empty strings (""). More... | |
| virtual TObject * | Clone (const char *newname="") const |
| Make a clone of an object using the Streamer facility. More... | |
| virtual Int_t | Compare (const TObject *obj) const |
| Compare two TNamed objects. More... | |
| virtual void | FillBuffer (char *&buffer) |
| Encode TNamed into output buffer. More... | |
| virtual const char * | GetName () const |
| Returns name of object. More... | |
| virtual const char * | GetTitle () const |
| Returns title of object. More... | |
| virtual ULong_t | Hash () const |
| Return hash value for this object. More... | |
| virtual Bool_t | IsSortable () const |
| virtual void | SetName (const char *name) |
| Change (i.e. More... | |
| virtual void | SetNameTitle (const char *name, const char *title) |
| Change (i.e. set) all the TNamed parameters (name and title). More... | |
| virtual void | ls (Option_t *option="") const |
| List TNamed name and title. More... | |
| virtual Int_t | Sizeof () const |
| Return size of the TNamed part of the TObject. More... | |
| Public Member Functions inherited from TObject | |
| TObject () | |
| TObject (const TObject &object) | |
| TObject copy ctor. More... | |
| TObject & | operator= (const TObject &rhs) |
| TObject assignment operator. More... | |
| virtual | ~TObject () |
| TObject destructor. More... | |
| virtual void | AppendPad (Option_t *option="") |
| Append graphics object to current pad. More... | |
| virtual const char * | ClassName () const |
| Returns name of class to which the object belongs. More... | |
| virtual void | Delete (Option_t *option="") |
| Delete this object. More... | |
| virtual void | DrawClass () const |
| Draw class inheritance tree of the class to which this object belongs. More... | |
| virtual TObject * | DrawClone (Option_t *option="") const |
| Draw a clone of this object in the current pad. More... | |
| virtual void | Dump () const |
| Dump contents of object on stdout. More... | |
| virtual void | Execute (const char *method, const char *params, Int_t *error=0) |
| Execute method on this object with the given parameter string, e.g. More... | |
| virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=0) |
| Execute method on this object with parameters stored in the TObjArray. More... | |
| virtual TObject * | FindObject (const char *name) const |
| Must be redefined in derived classes. More... | |
| virtual TObject * | FindObject (const TObject *obj) const |
| Must be redefined in derived classes. More... | |
| virtual Option_t * | GetDrawOption () const |
| Get option used by the graphics system to draw this object. More... | |
| virtual UInt_t | GetUniqueID () const |
| Return the unique object id. More... | |
| virtual const char * | GetIconName () const |
| Returns mime type name of object. More... | |
| virtual Option_t * | GetOption () const |
| virtual Bool_t | HandleTimer (TTimer *timer) |
| Execute action in response of a timer timing out. More... | |
| virtual Bool_t | InheritsFrom (const char *classname) const |
| Returns kTRUE if object inherits from class "classname". More... | |
| virtual Bool_t | InheritsFrom (const TClass *cl) const |
| Returns kTRUE if object inherits from TClass cl. More... | |
| virtual void | Inspect () const |
| Dump contents of this object in a graphics canvas. More... | |
| virtual Bool_t | IsFolder () const |
| Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More... | |
| virtual Bool_t | IsEqual (const TObject *obj) const |
| Default equal comparison (objects are equal if they have the same address in memory). More... | |
| Bool_t | IsOnHeap () const |
| Bool_t | IsZombie () const |
| virtual Bool_t | Notify () |
| This method must be overridden to handle object notification. More... | |
| virtual void | Pop () |
| Pop on object drawn in a pad to the top of the display list. More... | |
| virtual Int_t | Read (const char *name) |
| Read contents of object with specified name from the current directory. More... | |
| virtual void | RecursiveRemove (TObject *obj) |
| Recursively remove this object from a list. More... | |
| virtual void | SaveAs (const char *filename="", Option_t *option="") const |
| Save this object in the file specified by filename. More... | |
| virtual void | SetDrawOption (Option_t *option="") |
| Set drawing option for object. More... | |
| virtual void | SetUniqueID (UInt_t uid) |
| Set the unique object id. More... | |
| virtual void | UseCurrentStyle () |
| Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More... | |
| virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) |
| Write this object to the current directory. More... | |
| virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const |
| Write this object to the current directory. More... | |
| void * | operator new (size_t sz) |
| void * | operator new[] (size_t sz) |
| void * | operator new (size_t sz, void *vp) |
| void * | operator new[] (size_t sz, void *vp) |
| void | operator delete (void *ptr) |
| Operator delete. More... | |
| void | operator delete[] (void *ptr) |
| Operator delete []. More... | |
| void | SetBit (UInt_t f, Bool_t set) |
| Set or unset the user status bits as specified in f. More... | |
| void | SetBit (UInt_t f) |
| void | ResetBit (UInt_t f) |
| Bool_t | TestBit (UInt_t f) const |
| Int_t | TestBits (UInt_t f) const |
| void | InvertBit (UInt_t f) |
| virtual void | Info (const char *method, const char *msgfmt,...) const |
| Issue info message. More... | |
| virtual void | Warning (const char *method, const char *msgfmt,...) const |
| Issue warning message. More... | |
| virtual void | Error (const char *method, const char *msgfmt,...) const |
| Issue error message. More... | |
| virtual void | SysError (const char *method, const char *msgfmt,...) const |
| Issue system error message. More... | |
| virtual void | Fatal (const char *method, const char *msgfmt,...) const |
| Issue fatal error message. More... | |
| void | AbstractMethod (const char *method) const |
| Use this method to implement an "abstract" method that you don't want to leave purely abstract. More... | |
| void | MayNotUse (const char *method) const |
| Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More... | |
| void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
| Use this method to declare a method obsolete. More... | |
| Public Member Functions inherited from TAttLine | |
| TAttLine () | |
| AttLine default constructor. More... | |
| TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth) | |
| AttLine normal constructor. More... | |
| virtual | ~TAttLine () |
| AttLine destructor. More... | |
| void | Copy (TAttLine &attline) const |
| Copy this line attributes to a new TAttLine. More... | |
| Int_t | DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2) |
| Compute distance from point px,py to a line. More... | |
| virtual Color_t | GetLineColor () const |
| virtual Style_t | GetLineStyle () const |
| virtual Width_t | GetLineWidth () const |
| virtual void | Modify () |
| Change current line attributes if necessary. More... | |
| virtual void | ResetAttLine (Option_t *option="") |
| Reset this line attributes to default values. More... | |
| virtual void | SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1) |
| Save line attributes as C++ statement(s) on output stream out. More... | |
| virtual void | SetLineAttributes () |
| Invoke the DialogCanvas Line attributes. More... | |
| virtual void | SetLineColor (Color_t lcolor) |
| virtual void | SetLineColorAlpha (Color_t lcolor, Float_t lalpha) |
| Set a transparent line color. More... | |
| virtual void | SetLineStyle (Style_t lstyle) |
| virtual void | SetLineWidth (Width_t lwidth) |
| ClassDef (TAttLine, 2) | |
| Public Member Functions inherited from TAttFill | |
| TAttFill () | |
| TAttFill (Color_t fcolor, Style_t fstyle) | |
| AttFill normal constructor. More... | |
| virtual | ~TAttFill () |
| AttFill destructor. More... | |
| void | Copy (TAttFill &attfill) const |
| Copy this fill attributes to a new TAttFill. More... | |
| virtual Color_t | GetFillColor () const |
| virtual Style_t | GetFillStyle () const |
| virtual Bool_t | IsTransparent () const |
| virtual void | Modify () |
| Change current fill area attributes if necessary. More... | |
| virtual void | ResetAttFill (Option_t *option="") |
| Reset this fill attributes to default values. More... | |
| virtual void | SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001) |
| Save fill attributes as C++ statement(s) on output stream out. More... | |
| virtual void | SetFillAttributes () |
| Invoke the DialogCanvas Fill attributes. More... | |
| virtual void | SetFillColor (Color_t fcolor) |
| virtual void | SetFillColorAlpha (Color_t fcolor, Float_t falpha) |
| Set a transparent fill color. More... | |
| virtual void | SetFillStyle (Style_t fstyle) |
| Public Member Functions inherited from TAttMarker | |
| TAttMarker () | |
| TAttMarker (Color_t color, Style_t style, Size_t msize) | |
| TAttMarker normal constructor. More... | |
| virtual | ~TAttMarker () |
| TAttMarker destructor. More... | |
| void | Copy (TAttMarker &attmarker) const |
| Copy this marker attributes to a new TAttMarker. More... | |
| virtual Color_t | GetMarkerColor () const |
| virtual Style_t | GetMarkerStyle () const |
| virtual Size_t | GetMarkerSize () const |
| virtual void | Modify () |
| Change current marker attributes if necessary. More... | |
| virtual void | ResetAttMarker (Option_t *toption="") |
| Reset this marker attributes to the default values. More... | |
| virtual void | SaveMarkerAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t sizdef=1) |
| Save line attributes as C++ statement(s) on output stream out. More... | |
| virtual void | SetMarkerAttributes () |
| Invoke the DialogCanvas Marker attributes. More... | |
| virtual void | SetMarkerColor (Color_t mcolor=1) |
| virtual void | SetMarkerColorAlpha (Color_t mcolor, Float_t malpha) |
| Set a transparent marker color. More... | |
| virtual void | SetMarkerStyle (Style_t mstyle=1) |
| virtual void | SetMarkerSize (Size_t msize=1) |
| ClassDef (TAttMarker, 2) | |
Protected Member Functions | |
| virtual Double_t | FindMinMax (Double_t *x, bool findmax) const |
| Return minimum/maximum value of the function. More... | |
| Protected Member Functions inherited from TF1 | |
| void | DoInitialize () |
| Common initialization of the TF1. More... | |
| void | IntegrateForNormalization () |
| virtual Double_t | GetMinMaxNDim (Double_t *x, Bool_t findmax, Double_t epsilon=0, Int_t maxiter=0) const |
| Find the minimum of a function of whatever dimension. More... | |
| virtual void | GetRange (Double_t *xmin, Double_t *xmax) const |
| Return range of a generic N-D function. More... | |
| virtual TH1 * | DoCreateHistogram (Double_t xmin, Double_t xmax, Bool_t recreate=kFALSE) |
| Create histogram with bin content equal to function value computed at the bin center This histogram will be used to paint the function A re-creation is forced and a new histogram is done if recreate=true. More... | |
| Protected Member Functions inherited from TObject | |
| void | MakeZombie () |
| virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
| Interface to ErrorHandler (protected). More... | |
Protected Attributes | |
| Double_t | fZmin |
| Double_t | fZmax |
| Int_t | fNpz |
| Protected Attributes inherited from TF2 | |
| Double_t | fYmin |
| Double_t | fYmax |
| Int_t | fNpy |
| TArrayD | fContour |
| Protected Attributes inherited from TF1 | |
| Double_t | fXmin |
| Double_t | fXmax |
| Int_t | fNpar |
| Int_t | fNdim |
| Int_t | fNpx |
| Int_t | fType |
| Int_t | fNpfits |
| Int_t | fNDF |
| Double_t | fChisquare |
| Double_t | fMinimum |
| Double_t | fMaximum |
| std::vector< Double_t > | fParErrors |
| std::vector< Double_t > | fParMin |
| std::vector< Double_t > | fParMax |
| std::vector< Double_t > | fSave |
| std::vector< Double_t > | fIntegral |
| std::vector< Double_t > | fAlpha |
| Integral of function binned on fNpx bins. More... | |
| std::vector< Double_t > | fBeta |
| Array alpha. for each bin in x the deconvolution r of fIntegral. More... | |
| std::vector< Double_t > | fGamma |
| Array beta. is approximated by x = alpha +beta*r *gamma*r**2. More... | |
| TObject * | fParent |
| Array gamma. More... | |
| TH1 * | fHistogram |
| Parent object hooking this function (if one) More... | |
| TMethodCall * | fMethodCall |
| Pointer to histogram used for visualisation. More... | |
| Bool_t | fNormalized |
| Pointer to MethodCall in case of interpreted function. More... | |
| Double_t | fNormIntegral |
| ROOT::Math::ParamFunctor | fFunctor |
| TFormula * | fFormula |
| Functor object to wrap any C++ callable object. More... | |
| TF1Parameters * | fParams |
| Protected Attributes inherited from TNamed | |
| TString | fName |
| TString | fTitle |
| Protected Attributes inherited from TAttLine | |
| Color_t | fLineColor |
| Style_t | fLineStyle |
| Width_t | fLineWidth |
| Protected Attributes inherited from TAttFill | |
| Color_t | fFillColor |
| Style_t | fFillStyle |
| Protected Attributes inherited from TAttMarker | |
| Color_t | fMarkerColor |
| Style_t | fMarkerStyle |
| Size_t | fMarkerSize |
Additional Inherited Members | |
| Public Types inherited from TF1 | |
| enum | { kNotDraw = BIT(9) } |
| Public Types inherited from TObject | |
| enum | EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) } |
| enum | { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff } |
| enum | { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) } |
| Static Public Member Functions inherited from TF1 | |
| static Double_t | DerivativeError () |
| Static function returning the error of the last call to the of Derivative's functions. More... | |
| static void | InitStandardFunctions () |
| Create the basic function objects. More... | |
| static TF1 * | GetCurrent () |
| Static function returning the current function being processed. More... | |
| static void | AbsValue (Bool_t reject=kTRUE) |
| Static function: set the fgAbsValue flag. More... | |
| static void | RejectPoint (Bool_t reject=kTRUE) |
| Static function to set the global flag to reject points the fgRejectPoint global flag is tested by all fit functions if TRUE the point is not included in the fit. More... | |
| static Bool_t | RejectedPoint () |
| See TF1::RejectPoint above. More... | |
| static void | SetCurrent (TF1 *f1) |
| Static function setting the current function. More... | |
| static void | CalcGaussLegendreSamplingPoints (Int_t num, Double_t *x, Double_t *w, Double_t eps=3.0e-11) |
| Type safe interface (static method) The number of sampling points are taken from the TGraph. More... | |
| Static Public Member Functions inherited from TObject | |
| static Long_t | GetDtorOnly () |
| Return destructor only flag. More... | |
| static void | SetDtorOnly (void *obj) |
| Set destructor only flag. More... | |
| static Bool_t | GetObjectStat () |
| Get status of object stat flag. More... | |
| static void | SetObjectStat (Bool_t stat) |
| Turn on/off tracking of objects in the TObjectTable. More... | |
| Protected Types inherited from TF1 | |
| enum | { kNotGlobal = BIT(10) } |
| Static Protected Attributes inherited from TF1 | |
| static Bool_t | fgAbsValue = kFALSE |
| static Bool_t | fgRejectPoint = kFALSE |
| static Bool_t | fgAddToGlobList = kTRUE |
| static TF1 * | fgCurrent = 0 |
#include <TF3.h>
| TF3::TF3 | ( | ) |
| TF3::TF3 | ( | const char * | name, |
| Double_t(*)(Double_t *, Double_t *) | fcn, | ||
| Double_t | xmin = 0, |
||
| Double_t | xmax = 1, |
||
| Double_t | ymin = 0, |
||
| Double_t | ymax = 1, |
||
| Double_t | zmin = 0, |
||
| Double_t | zmax = 1, |
||
| Int_t | npar = 0, |
||
| Int_t | ndim = 3 |
||
| ) |
F3 constructor using a pointer to real function.
| [in] | npar | is the number of free parameters used by the function |
For example, for a 3-dim function with 3 parameters, the user function looks like:
Double_t fun1(Double_t *x, Double_t *par) return par[0]*x[2] + par[1]*exp(par[2]*x[0]*x[1]);
WARNING! A function created with this constructor cannot be Cloned.
| TF3::TF3 | ( | const char * | name, |
| Double_t(*)(const Double_t *, const Double_t *) | fcn, | ||
| Double_t | xmin = 0, |
||
| Double_t | xmax = 1, |
||
| Double_t | ymin = 0, |
||
| Double_t | ymax = 1, |
||
| Double_t | zmin = 0, |
||
| Double_t | zmax = 1, |
||
| Int_t | npar = 0, |
||
| Int_t | ndim = 3 |
||
| ) |
F3 constructor using a pointer to real function—.
| [in] | npar | is the number of free parameters used by the function |
For example, for a 3-dim function with 3 parameters, the user function looks like:
Double_t fun1(Double_t *x, Double_t *par) return par[0]*x[2] + par[1]*exp(par[2]*x[0]*x[1]);
WARNING! A function created with this constructor cannot be Cloned.
|
virtual |
Return x^nx * y^ny * z^nz central moment of a 3d function in range [ax,bx],[ay,by],[az,bz].
Definition at line 735 of file TF3.cxx.
Referenced by Covariance3XY(), Covariance3XZ(), Covariance3YZ(), Variance3X(), Variance3Y(), and Variance3Z().
Copy this F3 to a new F3.
Reimplemented from TF2.
Definition at line 150 of file TF3.cxx.
Referenced by operator=().
|
virtual |
Draw this function with its current attributes.
Reimplemented from TF2.
Definition at line 174 of file TF3.cxx.
Referenced by glsurfaces(), gltf3(), and unuranGraf2D().
Draw derivative of this function.
An intermediate TGraph object is built and drawn with option. The function returns a pointer to the TGraph object. Do:
TGraph *g = (TGraph*)myfunc.DrawDerivative(option);
The resulting graph will be drawn into the current pad. If this function is used via the context menu, it recommended to create a new canvas/pad before invoking this function.
Reimplemented from TF2.
Draw integral of this function.
An intermediate TGraph object is built and drawn with option. The function returns a pointer to the TGraph object. Do:
TGraph *g = (TGraph*)myfunc.DrawIntegral(option);
The resulting graph will be drawn into the current pad. If this function is used via the context menu, it recommended to create a new canvas/pad before invoking this function.
Reimplemented from TF2.
Return minimum/maximum value of the function.
To find the minimum on a range, first set this range via the SetRange function If a vector x of coordinate is passed it will be used as starting point for the minimum. In addition on exit x will contain the coordinate values at the minimuma If x is NULL or x is inifinity or NaN, first, a grid search is performed to find the initial estimate of the minimum location. The range of the function is divided into fNpx and fNpy sub-ranges. If the function is "good" (or "bad"), these values can be changed by SetNpx and SetNpy functions
Then, a minimization is used with starting values found by the grid search The minimizer algorithm used (by default Minuit) can be changed by callinga ROOT::Math::Minimizer::SetDefaultMinimizerType("..") Other option for the minimizer can be set using the static method of the MinimizerOptions class
Reimplemented from TF2.
Definition at line 210 of file TF3.cxx.
Referenced by GetMaximumXYZ(), and GetMinimumXYZ().
Compute the X, Y and Z values corresponding to the maximum value of the function on its range.
Return the function value at the maximum. See TF3::GetMinimumXYZ
Compute the X, Y and Z values corresponding to the minimum value of the function on its range.
Returns the function value at the minimum. To find the minimum on a subrange, use the SetRange() function first.
Method: First, a grid search is performed to find the initial estimate of the minimum location. The range of the function is divided into fNpx,fNpy and fNpz sub-ranges. If the function is "good" (or "bad"), these values can be changed by SetNpx(), SetNpy() and SetNpz() functions. Then, Minuit minimization is used with starting values found by the grid search
Note that this method will always do first a grid search in contrast to GetMinimum
|
inline |
Definition at line 95 of file TF3.h.
Referenced by SavePrimitive(), and unuranMultiDim().
Return 3 random numbers following this function shape.
The distribution contained in this TF3 function is integrated over the cell contents. It is normalized to 1. Getting the three random numbers implies:
IMPORTANT NOTE
The integral of the function is computed at fNpx * fNpy * fNpz points. If the function has sharp peaks, you should increase the number of points (SetNpx, SetNpy, SetNpz) such that the peak is correctly tabulated at several points.
Definition at line 322 of file TF3.cxx.
Referenced by testDistrMultiDim(), and testGetRandom().
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Return Integral of a 3d function in range [ax,bx],[ay,by],[az,bz] with a desired relative accuracy.
Definition at line 448 of file TF3.cxx.
Referenced by CentralMoment3(), and Moment3().
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Save values of function in array fSave.
Reimplemented from TF2.
Definition at line 534 of file TF3.cxx.
Referenced by HFit::StoreAndDrawFitFunction().
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Set the number of points used to draw the function.
The default number of points along x is 30 for 2-d/3-d functions. You can increase this value to get a better resolution when drawing pictures with sharp peaks or to get a better result when using TF3::GetRandom2 the minimum number of points is 4, the maximum is 10000 for 2-d/3-d functions
Definition at line 664 of file TF3.cxx.
Referenced by testDistrMultiDim(), and unuranMultiDim().
Initialize the upper and lower bounds to draw the function.
The function range is also used in an histogram fit operation when the option "R" is specified.
Reimplemented from TF2.
Definition at line 145 of file TF3.h.
Referenced by copyTF1(), HFit::StoreAndDrawFitFunction(), and unuranMultiDim().
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Definition at line 35 of file TF3.h.
Referenced by Copy(), CreateHistogram(), FindMinMax(), GetNpz(), GetRandom3(), Integral(), Paint(), Save(), SetClippingBoxOff(), SetClippingBoxOn(), SetNpz(), and TF3().
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Definition at line 34 of file TF3.h.
Referenced by Copy(), CreateHistogram(), FindMinMax(), GetRandom3(), GetRange(), GetZmax(), IsInside(), Paint(), Save(), SavePrimitive(), SetClippingBoxOff(), SetClippingBoxOn(), SetRange(), and TF3().
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Definition at line 33 of file TF3.h.
Referenced by Copy(), CreateHistogram(), FindMinMax(), GetRandom3(), GetRange(), GetZmin(), IsInside(), Paint(), Save(), SavePrimitive(), SetClippingBoxOff(), SetClippingBoxOn(), SetRange(), and TF3().
ROOT 6.07/01 - Reference Guide Generated on Wed Dec 9 2015 00:26:52 using Doxygen 1.8.6.