TMAGAffMtx Class Reference

#include <mag.h>

List of all members.

Public Member Functions
	TMAGAffMtx ()
	TMAGAffMtx (const int &Dim)
	TMAGAffMtx (const TFltV &SeedMatrix)
	TMAGAffMtx (const TMAGAffMtx &Kronecker)
TMAGAffMtx &	operator= (const TMAGAffMtx &Kronecker)
bool	operator== (const TMAGAffMtx &Kronecker) const
int	GetPrimHashCd () const
int	GetSecHashCd () const
int	GetDim () const
int	Len () const
bool	Empty () const
bool	IsProbMtx () const
TFltV &	GetMtx ()
const TFltV &	GetMtx () const
void	SetMtx (const TFltV &ParamV)
void	SetRndMtx (TRnd &Rnd, const int &PrmMtxDim=2, const double &MinProb=0.0)
void	PutAllMtx (const double &Val)
void	GenMtx (const int &Dim)
void	SetEpsMtx (const double &Eps1, const double &Eps0, const int &Eps1Val=1, const int &Eps0Val=0)
void	AddRndNoise (TRnd &Rnd, const double &SDev)
TStr	GetMtxStr () const
const double &	At (const int &Row, const int &Col) const
double &	At (const int &Row, const int &Col)
const double &	At (const int &ValN) const
double &	At (const int &ValN)
double	GetMtxSum () const
double	GetRowSum (const int &RowId) const
double	GetColSum (const int &ColId) const
double	Normalize ()
void	GetLLMtx (TMAGAffMtx &LLMtx)
void	GetProbMtx (TMAGAffMtx &ProbMtx)
void	Swap (TMAGAffMtx &Mtx)
void	Dump (const TStr &MtxNm=TStr(), const bool &Sort=false) const
Static Public Member Functions
static double	GetAvgAbsErr (const TMAGAffMtx &Mtx1, const TMAGAffMtx &Mtx2)
static double	GetAvgFroErr (const TMAGAffMtx &Mtx1, const TMAGAffMtx &Mtx2)
static TMAGAffMtx	GetMtx (TStr MatlabMtxStr)
static TMAGAffMtx	GetRndMtx (TRnd &Rnd, const int &Dim=2, const double &MinProb=0.0)
Private Attributes
TInt	MtxDim
TFltV	SeedMtx
Static Private Attributes
static const double	NInf = -DBL_MAX

---

Detailed Description

Definition at line 10 of file mag.h.

---

Constructor & Destructor Documentation

TMAGAffMtx::TMAGAffMtx

(

)

[inline]

Definition at line 16 of file mag.h.

: MtxDim(-1), SeedMtx() { }

TMAGAffMtx::TMAGAffMtx

(

const int &

Dim

)

[inline]

Definition at line 17 of file mag.h.

: MtxDim(Dim), SeedMtx(Dim*Dim) { }

TMAGAffMtx::TMAGAffMtx

(

const TFltV &

SeedMatrix

)

Definition at line 14 of file mag.cpp.

                                              : SeedMtx(SeedMatrix) {
  MtxDim = (int) sqrt((double)SeedMatrix.Len());
  IAssert(MtxDim*MtxDim == SeedMtx.Len());
}

TMAGAffMtx::TMAGAffMtx

(

const TMAGAffMtx &

Kronecker

)

[inline]

Definition at line 19 of file mag.h.

: MtxDim(Kronecker.MtxDim), SeedMtx(Kronecker.SeedMtx) { }

---

Member Function Documentation

void TMAGAffMtx::AddRndNoise	(	TRnd &	Rnd,
		const double &	SDev
	)

Definition at line 52 of file mag.cpp.

                                                          {
  Dump("before");
  double NewVal;
  int c =0;
  for (int i = 0; i < Len(); i++) {
    for(c = 0; ((NewVal = At(i)*Rnd.GetNrmDev(1, SDev, 0.8, 1.2)) < 0.01 || NewVal>0.99) && c <1000; c++) { }
    if (c < 999) { At(i) = NewVal; } else { printf("XXXXX\n"); }
  }
  Dump("after");
}

const double& TMAGAffMtx::At	(	const int &	Row,
		const int &	Col
	)		const [inline]

Definition at line 41 of file mag.h.

{ return SeedMtx[MtxDim*Row+Col].Val; }

double& TMAGAffMtx::At	(	const int &	Row,
		const int &	Col
	)		[inline]

Definition at line 42 of file mag.h.

{ return SeedMtx[MtxDim*Row+Col].Val; }

const double& TMAGAffMtx::At

(

const int &

ValN

)

const [inline]

Definition at line 43 of file mag.h.

{ return SeedMtx[ValN].Val; }

double& TMAGAffMtx::At

(

const int &

ValN

)

[inline]

Definition at line 44 of file mag.h.

{ return SeedMtx[ValN].Val; }

void TMAGAffMtx::Dump	(	const TStr &	MtxNm = TStr(),
		const bool &	Sort = false
	)		const

Definition at line 128 of file mag.cpp.

                                                               {
  /*printf("%s: %d x %d\n", MtxNm.Empty()?"Mtx":MtxNm.CStr(), GetDim(), GetDim());
  for (int r = 0; r < GetDim(); r++) {
    for (int c = 0; c < GetDim(); c++) { printf("  %8.2g", At(r, c)); }
    printf("\n");
  }*/
  if (! MtxNm.Empty()) printf("%s\n", MtxNm.CStr());
  double Sum=0.0;
  TFltV ValV = SeedMtx;
  if (Sort) { ValV.Sort(false); }
  for (int i = 0; i < ValV.Len(); i++) {
    printf("  %10.4g", ValV[i]());
    Sum += ValV[i];
    if ((i+1) % GetDim() == 0) { printf("\n"); }
  }
  printf(" (sum:%.4f)\n", Sum);
}

bool TMAGAffMtx::Empty

(

)

const [inline]

Definition at line 28 of file mag.h.

{ return SeedMtx.Empty(); }

void TMAGAffMtx::GenMtx

(

const int &

Dim

)

[inline]

Definition at line 36 of file mag.h.

{ MtxDim=Dim;  SeedMtx.Gen(Dim*Dim); }

double TMAGAffMtx::GetAvgAbsErr	(	const TMAGAffMtx &	Mtx1,
		const TMAGAffMtx &	Mtx2
	)		[static]

Definition at line 147 of file mag.cpp.

                                                                              {
  TFltV P1 = Mtx1.GetMtx();
  TFltV P2 = Mtx2.GetMtx();
  IAssert(P1.Len() == P2.Len());
  P1.Sort();  P2.Sort();
  double delta = 0.0;
  for (int i = 0; i < P1.Len(); i++) {
    delta += fabs(P1[i] - P2[i]);
  }
  return delta/P1.Len();
}

double TMAGAffMtx::GetAvgFroErr	(	const TMAGAffMtx &	Mtx1,
		const TMAGAffMtx &	Mtx2
	)		[static]

Definition at line 160 of file mag.cpp.

                                                                              {
  TFltV P1 = Mtx1.GetMtx();
  TFltV P2 = Mtx2.GetMtx();
  IAssert(P1.Len() == P2.Len());
  P1.Sort();  P2.Sort();
  double delta = 0.0;
  for (int i = 0; i < P1.Len(); i++) {
    delta += pow(P1[i] - P2[i], 2);
  }
  return sqrt(delta/P1.Len());
}

double TMAGAffMtx::GetColSum

(

const int &

ColId

)

const

Definition at line 109 of file mag.cpp.

                                                   {
  double Sum = 0;
  for (int r = 0; r < GetDim(); r++) {
    Sum += At(r, ColId); }
  return Sum;
}

int TMAGAffMtx::GetDim

(

)

const [inline]

Definition at line 26 of file mag.h.

{ return MtxDim; }

void TMAGAffMtx::GetLLMtx

(

TMAGAffMtx &

LLMtx

)

Definition at line 74 of file mag.cpp.

                                           {
  LLMtx.GenMtx(MtxDim);
  for (int i = 0; i < Len(); i++) {
    if (At(i) != 0.0) { LLMtx.At(i) = log(At(i)); }
    else { LLMtx.At(i) = NInf; }
  }
}

TFltV& TMAGAffMtx::GetMtx

(

)

[inline]

Definition at line 31 of file mag.h.

{ return SeedMtx; }

const TFltV& TMAGAffMtx::GetMtx

(

)

const [inline]

Definition at line 32 of file mag.h.

{ return SeedMtx; }

TMAGAffMtx TMAGAffMtx::GetMtx

(

TStr

MatlabMtxStr

)

[static]

Definition at line 173 of file mag.cpp.

                                               {
  TStrV RowStrV, ColStrV;
  MatlabMtxStr.ChangeChAll(',', ' ');
  MatlabMtxStr.SplitOnAllCh(';', RowStrV);  IAssert(! RowStrV.Empty());
  RowStrV[0].SplitOnWs(ColStrV);    IAssert(! ColStrV.Empty());
  const int Rows = RowStrV.Len();
  const int Cols = ColStrV.Len();
  IAssert(Rows == Cols);
  TMAGAffMtx Mtx(Rows);
  for (int r = 0; r < Rows; r++) {
    RowStrV[r].SplitOnWs(ColStrV);
    IAssert(ColStrV.Len() == Cols);
    for (int c = 0; c < Cols; c++) {
      Mtx.At(r, c) = (double) ColStrV[c].GetFlt(); }
  }
  return Mtx;
}

TStr TMAGAffMtx::GetMtxStr

(

)

const

Definition at line 63 of file mag.cpp.

                                 {
  TChA ChA("[");
  for (int i = 0; i < Len(); i++) {
    ChA += TStr::Fmt("%g", At(i));
    if ((i+1)%GetDim()==0 && (i+1<Len())) { ChA += "; "; }
    else if (i+1<Len()) { ChA += " "; }
  }
  ChA += "]";
  return TStr(ChA);
}

double TMAGAffMtx::GetMtxSum

(

)

const

Definition at line 95 of file mag.cpp.

                                   {
  double Sum = 0;
  for (int i = 0; i < Len(); i++) {
    Sum += At(i); }
  return Sum;
}

int TMAGAffMtx::GetPrimHashCd

(

)

const [inline]

Definition at line 22 of file mag.h.

{ return SeedMtx.GetPrimHashCd(); }

void TMAGAffMtx::GetProbMtx

(

TMAGAffMtx &

ProbMtx

)

Definition at line 82 of file mag.cpp.

                                               {
  ProbMtx.GenMtx(MtxDim);
  for (int i = 0; i < Len(); i++) {
    if (At(i) != NInf) { ProbMtx.At(i) = exp(At(i)); }
    else { ProbMtx.At(i) = 0.0; }
  }
}

TMAGAffMtx TMAGAffMtx::GetRndMtx	(	TRnd &	Rnd,
		const int &	Dim = 2,
		const double &	MinProb = 0.0
	)		[static]

Definition at line 191 of file mag.cpp.

                                                                                 {
  TMAGAffMtx Mtx;
  Mtx.SetRndMtx(Rnd, Dim, MinProb);
  return Mtx;
}

double TMAGAffMtx::GetRowSum

(

const int &

RowId

)

const

Definition at line 102 of file mag.cpp.

                                                   {
  double Sum = 0;
  for (int c = 0; c < GetDim(); c++) {
    Sum += At(RowId, c); }
  return Sum;
}

int TMAGAffMtx::GetSecHashCd

(

)

const [inline]

Definition at line 23 of file mag.h.

{ return SeedMtx.GetSecHashCd(); }

bool TMAGAffMtx::IsProbMtx

(

)

const

Definition at line 27 of file mag.cpp.

                                 {
  for (int i = 0; i < Len(); i++) {
    if (At(i) < 0.0 || At(i) > 1.0) return false;
  }
  return true;
}

int TMAGAffMtx::Len

(

)

const [inline]

Definition at line 27 of file mag.h.

{ return SeedMtx.Len(); }

double TMAGAffMtx::Normalize

(

)

Definition at line 116 of file mag.cpp.

                             {
        double Sum = GetMtxSum();
        if(Sum == 0) {
                return 0;
        }

        for(int i = 0; i < Len(); i++) {
                At(i) = At(i) / Sum;
        }
        return Sum;
}

TMAGAffMtx & TMAGAffMtx::operator=

(

const TMAGAffMtx &

Kronecker

)

Definition at line 19 of file mag.cpp.

                                                               {
  if (this != &Kronecker){
    MtxDim=Kronecker.MtxDim;
    SeedMtx=Kronecker.SeedMtx;
  }
  return *this;
}

bool TMAGAffMtx::operator==

(

const TMAGAffMtx &

Kronecker

)

const [inline]

Definition at line 21 of file mag.h.

{ return SeedMtx==Kronecker.SeedMtx; }

void TMAGAffMtx::PutAllMtx

(

const double &

Val

)

[inline]

Definition at line 35 of file mag.h.

{ SeedMtx.PutAll(Val); }

void TMAGAffMtx::SetEpsMtx	(	const double &	Eps1,
		const double &	Eps0,
		const int &	Eps1Val = 1,
		const int &	Eps0Val = 0
	)

Definition at line 44 of file mag.cpp.

                                                                                                         {
  for (int i = 0; i < Len(); i++) {
    double& Val = At(i);
    if (Val == Eps1Val) Val = double(Eps1);
    else if (Val == Eps0Val) Val = double(Eps0);
  }
}

void TMAGAffMtx::SetMtx

(

const TFltV &

ParamV

)

[inline]

Definition at line 33 of file mag.h.

{ SeedMtx = ParamV; }

void TMAGAffMtx::SetRndMtx	(	TRnd &	Rnd,
		const int &	PrmMtxDim = 2,
		const double &	MinProb = 0.0
	)

Definition at line 34 of file mag.cpp.

                                                                                 {
  MtxDim = PrmMtxDim;
  SeedMtx.Gen(MtxDim*MtxDim);
  for (int p = 0; p < SeedMtx.Len(); p++) {
    do {
      SeedMtx[p] = Rnd.GetUniDev();
    } while (SeedMtx[p] < MinProb);
  }
}

void TMAGAffMtx::Swap

(

TMAGAffMtx &

Mtx

)

Definition at line 90 of file mag.cpp.

                                     {
  ::Swap(MtxDim, Mtx.MtxDim);
  SeedMtx.Swap(Mtx.SeedMtx);
}

---

Member Data Documentation

TInt TMAGAffMtx::MtxDim [private]

Definition at line 13 of file mag.h.

const double TMAGAffMtx::NInf = -DBL_MAX [static, private]

Definition at line 11 of file mag.h.

TFltV TMAGAffMtx::SeedMtx [private]

Definition at line 14 of file mag.h.

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The documentation for this class was generated from the following files:

• snap-adv/mag.h
• snap-adv/mag.cpp