class TRandom2: public TRandom
TRandom2 Random number generator class based on the maximally quidistributed combined Tausworthe generator by L'Ecuyer. The period of the generator is 2**88 (about 10**26) and it uses only 3 words for the state. For more information see: P. L'Ecuyer, Mathematics of Computation, 65, 213 (1996) P. L'Ecuyer, Mathematics of Computation, 68, 225 (1999) The publication are available online at http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme.ps http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme2.ps
Function Members (Methods)
public:
| TRandom2(UInt_t seed = 1) | |
| TRandom2(const TRandom2&) | |
| virtual | ~TRandom2() |
| void | TObject::AbstractMethod(const char* method) const |
| virtual void | TObject::AppendPad(Option_t* option = "") |
| virtual Int_t | TRandom::Binomial(Int_t ntot, Double_t prob) |
| virtual Double_t | TRandom::BreitWigner(Double_t mean = 0, Double_t gamma = 1) |
| virtual void | TObject::Browse(TBrowser* b) |
| virtual void | TRandom::Circle(Double_t& x, Double_t& y, Double_t r) |
| static TClass* | Class() |
| static TClass* | TRandom::Class() |
| static TClass* | TNamed::Class() |
| static TClass* | TObject::Class() |
| virtual const char* | TObject::ClassName() const |
| virtual void | TNamed::Clear(Option_t* option = "") |
| virtual void | TObject::Clear(Option_t* = "") |
| virtual TObject* | TNamed::Clone(const char* newname = "") const |
| virtual TObject* | TObject::Clone(const char* newname = "") const |
| virtual Int_t | TNamed::Compare(const TObject* obj) const |
| virtual Int_t | TObject::Compare(const TObject* obj) const |
| virtual void | TNamed::Copy(TObject& named) const |
| virtual void | TObject::Copy(TObject& object) const |
| virtual void | TObject::Delete(Option_t* option = "")MENU |
| virtual Int_t | TObject::DistancetoPrimitive(Int_t px, Int_t py) |
| virtual void | TObject::Draw(Option_t* option = "") |
| virtual void | TObject::DrawClass() constMENU |
| virtual TObject* | TObject::DrawClone(Option_t* option = "") constMENU |
| virtual void | TObject::Dump() constMENU |
| virtual void | TObject::Error(const char* method, const char* msgfmt) const |
| virtual void | TObject::Execute(const char* method, const char* params, Int_t* error = 0) |
| virtual void | TObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0) |
| virtual void | TObject::ExecuteEvent(Int_t event, Int_t px, Int_t py) |
| virtual Double_t | TRandom::Exp(Double_t tau) |
| virtual void | TObject::Fatal(const char* method, const char* msgfmt) const |
| virtual void | TNamed::FillBuffer(char*& buffer) |
| virtual TObject* | TObject::FindObject(const char* name) const |
| virtual TObject* | TObject::FindObject(const TObject* obj) const |
| virtual Double_t | TRandom::Gaus(Double_t mean = 0, Double_t sigma = 1) |
| virtual Option_t* | TObject::GetDrawOption() const |
| static Long_t | TObject::GetDtorOnly() |
| virtual const char* | TObject::GetIconName() const |
| virtual const char* | TNamed::GetName() const |
| virtual const char* | TObject::GetName() const |
| virtual char* | TObject::GetObjectInfo(Int_t px, Int_t py) const |
| static Bool_t | TObject::GetObjectStat() |
| virtual Option_t* | TObject::GetOption() const |
| virtual UInt_t | TRandom::GetSeed() const |
| virtual const char* | TNamed::GetTitle() const |
| virtual const char* | TObject::GetTitle() const |
| virtual UInt_t | TObject::GetUniqueID() const |
| virtual Bool_t | TObject::HandleTimer(TTimer* timer) |
| virtual ULong_t | TNamed::Hash() const |
| virtual ULong_t | TObject::Hash() const |
| virtual void | TObject::Info(const char* method, const char* msgfmt) const |
| virtual Bool_t | TObject::InheritsFrom(const char* classname) const |
| virtual Bool_t | TObject::InheritsFrom(const TClass* cl) const |
| virtual void | TObject::Inspect() constMENU |
| virtual UInt_t | TRandom::Integer(UInt_t imax) |
| void | TObject::InvertBit(UInt_t f) |
| virtual TClass* | IsA() const |
| virtual TClass* | TRandom::IsA() const |
| virtual TClass* | TNamed::IsA() const |
| virtual TClass* | TObject::IsA() const |
| virtual Bool_t | TObject::IsEqual(const TObject* obj) const |
| virtual Bool_t | TObject::IsFolder() const |
| Bool_t | TObject::IsOnHeap() const |
| virtual Bool_t | TNamed::IsSortable() const |
| virtual Bool_t | TObject::IsSortable() const |
| Bool_t | TObject::IsZombie() const |
| virtual Double_t | TRandom::Landau(Double_t mean = 0, Double_t sigma = 1) |
| virtual void | TNamed::ls(Option_t* option = "") const |
| virtual void | TObject::ls(Option_t* option = "") const |
| void | TObject::MayNotUse(const char* method) const |
| virtual Bool_t | TObject::Notify() |
| static void | TObject::operator delete(void* ptr) |
| static void | TObject::operator delete(void* ptr, void* vp) |
| static void | TObject::operator delete[](void* ptr) |
| static void | TObject::operator delete[](void* ptr, void* vp) |
| void* | TObject::operator new(size_t sz) |
| void* | TObject::operator new(size_t sz, void* vp) |
| void* | TObject::operator new[](size_t sz) |
| void* | TObject::operator new[](size_t sz, void* vp) |
| TRandom2& | operator=(const TRandom2&) |
| TRandom& | TRandom::operator=(const TRandom&) |
| TNamed& | TNamed::operator=(const TNamed& rhs) |
| TObject& | TObject::operator=(const TObject& rhs) |
| virtual void | TObject::Paint(Option_t* option = "") |
| virtual Int_t | TRandom::Poisson(Double_t mean) |
| virtual Double_t | TRandom::PoissonD(Double_t mean) |
| virtual void | TObject::Pop() |
| virtual void | TNamed::Print(Option_t* option = "") const |
| virtual void | TObject::Print(Option_t* option = "") const |
| virtual void | TRandom::Rannor(Float_t& a, Float_t& b) |
| virtual void | TRandom::Rannor(Double_t& a, Double_t& b) |
| virtual Int_t | TObject::Read(const char* name) |
| virtual void | TRandom::ReadRandom(const char* filename) |
| virtual void | TObject::RecursiveRemove(TObject* obj) |
| void | TObject::ResetBit(UInt_t f) |
| virtual Double_t | Rndm(Int_t i = 0) |
| virtual Double_t | TRandom::Rndm(Int_t i = 0) |
| virtual void | RndmArray(Int_t n, Float_t* array) |
| virtual void | RndmArray(Int_t n, Double_t* array) |
| virtual void | TRandom::RndmArray(Int_t n, Float_t* array) |
| virtual void | TRandom::RndmArray(Int_t n, Double_t* array) |
| virtual void | TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU |
| virtual void | TObject::SavePrimitive(basic_ostream<char,char_traits<char> >& out, Option_t* option = "") |
| void | TObject::SetBit(UInt_t f) |
| void | TObject::SetBit(UInt_t f, Bool_t set) |
| virtual void | TObject::SetDrawOption(Option_t* option = "")MENU |
| static void | TObject::SetDtorOnly(void* obj) |
| virtual void | TNamed::SetName(const char* name)MENU |
| virtual void | TNamed::SetNameTitle(const char* name, const char* title) |
| static void | TObject::SetObjectStat(Bool_t stat) |
| virtual void | SetSeed(UInt_t seed = 0) |
| virtual void | TRandom::SetSeed(UInt_t seed = 65539) |
| virtual void | TNamed::SetTitle(const char* title = "")MENU |
| virtual void | TObject::SetUniqueID(UInt_t uid) |
| virtual void | ShowMembers(TMemberInspector& insp, char* parent) |
| virtual void | TRandom::ShowMembers(TMemberInspector& insp, char* parent) |
| virtual void | TNamed::ShowMembers(TMemberInspector& insp, char* parent) |
| virtual void | TObject::ShowMembers(TMemberInspector& insp, char* parent) |
| virtual Int_t | TNamed::Sizeof() const |
| virtual void | TRandom::Sphere(Double_t& x, Double_t& y, Double_t& z, Double_t r) |
| virtual void | Streamer(TBuffer& b) |
| virtual void | TRandom::Streamer(TBuffer& b) |
| virtual void | TNamed::Streamer(TBuffer& b) |
| virtual void | TObject::Streamer(TBuffer& b) |
| void | StreamerNVirtual(TBuffer& b) |
| void | TRandom::StreamerNVirtual(TBuffer& b) |
| virtual void | TObject::SysError(const char* method, const char* msgfmt) const |
| Bool_t | TObject::TestBit(UInt_t f) const |
| Int_t | TObject::TestBits(UInt_t f) const |
| virtual Double_t | TRandom::Uniform(Double_t x1 = 1) |
| virtual Double_t | TRandom::Uniform(Double_t x1, Double_t x2) |
| virtual void | TObject::UseCurrentStyle() |
| virtual void | TObject::Warning(const char* method, const char* msgfmt) const |
| virtual Int_t | TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) |
| virtual Int_t | TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const |
| virtual void | TRandom::WriteRandom(const char* filename) |
protected:
| virtual void | TObject::DoError(int level, const char* location, const char* fmt, va_list va) const |
| void | TObject::MakeZombie() |
Data Members
private:
| enum TObject::EStatusBits { | kCanDelete | |
| kMustCleanup | ||
| kObjInCanvas | ||
| kIsReferenced | ||
| kHasUUID | ||
| kCannotPick | ||
| kNoContextMenu | ||
| kInvalidObject | ||
| }; | ||
| enum TObject::[unnamed] { | kIsOnHeap | |
| kNotDeleted | ||
| kZombie | ||
| kBitMask | ||
| kSingleKey | ||
| kOverwrite | ||
| kWriteDelete | ||
| }; |
protected:
| TString | TNamed::fName | object identifier |
| UInt_t | TRandom::fSeed | Random number generator seed |
| UInt_t | fSeed1 | Random number generator seed 1 |
| UInt_t | fSeed2 | Random number generator seed 2 |
| TString | TNamed::fTitle | object title |
Class Charts
Function documentation
Double_t Rndm(Int_t i = 0)
TausWorth generator from L'Ecuyer, uses as seed 3x32bits integers Use a mask of 0xffffffffUL to make in work on 64 bit machines Periodicity of about 10**26
void RndmArray(Int_t n, Float_t *array)
Return an array of n random numbers uniformly distributed in ]0,1]
void RndmArray(Int_t n, Double_t *array)
Return an array of n random numbers uniformly distributed in ]0,1]
void SetSeed(UInt_t seed = 0)
Set the generator seed. If the seed given is zero, generate automatically seed values which are different every time by using TRandom3 and TUUID If a seed is given generate the other two needed for the generator state using a linear congruential generator The only condition, stated at the end of the 1999 L'Ecuyer paper is that the seeds must be greater than 1,7 and 15.