TUnuranMultiContDist class Wrapper class for multi dimensional continuous distributions. The class can be constructed from a multi-dimensional function.
| TUnuranMultiContDist(const TUnuranMultiContDist&) | |
| TUnuranMultiContDist(TF1* func = 0, unsigned int dim = 0, bool isLogPdf = false) | |
| virtual | ~TUnuranMultiContDist() |
| static TClass* | Class() |
| virtual TUnuranMultiContDist* | Clone() const |
| double | Derivative(const double* x, int icoord) const |
| const double* | GetLowerDomain() const |
| const double* | GetMode() const |
| const double* | GetUpperDomain() const |
| void | Gradient(const double* x, double* grad) const |
| virtual TClass* | IsA() const |
| bool | IsLogPdf() const |
| unsigned int | NDim() const |
| TUnuranMultiContDist& | operator=(const TUnuranMultiContDist& rhs) |
| double | Pdf(const double* x) const |
| void | SetDomain(const double* xmin, const double* xmax) |
| void | SetMode(double* x) |
| virtual void | ShowMembers(TMemberInspector& insp, char* parent) |
| virtual void | Streamer(TBuffer& b) |
| void | StreamerNVirtual(TBuffer& b) |
| unsigned int | fDim | number of function dimension |
| bool | fIsLogPdf | flag to control if function pointer represent log of pdf |
| vector<double> | fMode | vector representing the x coordinates of the maximum of the pdf |
| TF1* | fPdf | pointer to the pdf |
| vector<double> | fXmax | vector with upper x values of the domain |
| vector<double> | fXmin | vector with lower x values of the domain |
Constructor from a TF1 object representing the Probability density funciton. The derivatives of the Pdf are estimated, when required by the UNURAN algorithm, using numerical derivation. If a value of dim 0 is passed , the dimension of the function is taken from TF1::GetNdim(). This works only for 2D and 3D (for TF2 and TF3 objects).
Clone (required by base class)
{ return new TUnuranMultiContDist(*this); }t the domain of the distribution giving an array of minimum and maximum valu By default otherwise the domain is undefined, i.e. is [-inf,+inf] To remove the domain do a SetDomain(0,0). There is no possibility to have a domain defined in only one coordinate. Use instead inf or DOUBLE_MAX to specify un infinite domain in that coordinate
set the mode of the distribution (coordinates of the distribution maximum values)
get the distribution lower domain values. Return a null pointer if domain is not defined
get the distribution upper domain values. Return a null pointer if domain is not defined
get the mode (vector of coordinate positions of the maxima of the distribution) If a mode has not defined return a NULL pointer
evaluate the gradient vector of the Pdf. Used by UnuRan
evaluate the partial derivative for the given coordinate. Used by UnuRan