TLogRegPredict Class Reference

#include <agm.h>

Collaboration diagram for TLogRegPredict:

List of all members.

Public Member Functions
	TLogRegPredict (const TFltV &_bb)
	TLogRegPredict (TSIn &SIn)
void	Save (TSOut &SOut) const
	UndefDefaultCopyAssign (TLogRegPredict)
double	GetCfy (const TFltV &AttrV)
void	GetTheta (TFltV &_Theta)
void	GetCfy (const TVec< TFltV > &X, TFltV &OutV)
void	PrintTheta ()
Static Public Member Functions
static PLogRegPredict	Load (TSIn &SIn)
static void	GetCfy (const TVec< TFltV > &X, TFltV &OutV, const TFltV &NewTheta)
static double	GetCfy (const TFltV &AttrV, const TFltV &NewTheta)
Private Attributes
TCRef	CRef
TFltV	Theta
Friends
class	TPt< TLogRegPredict >

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Detailed Description

Definition at line 170 of file agm.h.

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Constructor & Destructor Documentation

TLogRegPredict::TLogRegPredict

(

const TFltV &

_bb

)

[inline]

Definition at line 176 of file agm.h.

Referenced by Load().

: Theta(_bb) { };

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TLogRegPredict::TLogRegPredict

(

TSIn &

SIn

)

[inline]

Definition at line 179 of file agm.h.

References TVec< TVal, TSizeTy >::Load(), and Theta.

{ Theta.Load(SIn); };

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Member Function Documentation

void TLogRegPredict::GetCfy	(	const TVec< TFltV > &	X,
		TFltV &	OutV,
		const TFltV &	NewTheta
	)		[static]

Definition at line 933 of file agm.cpp.

References TVec< TVal, TSizeTy >::Gen(), and TVec< TVal, TSizeTy >::Len().

Referenced by TLogRegFit::Gradient(), TLogRegFit::Hessian(), and TLogRegFit::Likelihood().

                                                                                    {
  OutV.Gen(X.Len());
  for (int r = 0; r < X.Len(); r++) {
    OutV[r] = GetCfy(X[r], NewTheta);
  }
}

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double TLogRegPredict::GetCfy	(	const TFltV &	AttrV,
		const TFltV &	NewTheta
	)		[static]

Definition at line 922 of file agm.cpp.

References TVec< TVal, TSizeTy >::Last(), and TVec< TVal, TSizeTy >::Len().

                                                                       {
    int len = AttrV.Len();
    double res = 0;
    if (len < NewTheta.Len()) { res = NewTheta.Last(); } //if feature vector is shorter, add an intercept
    for (int i = 0; i < len; i++) {
      if (i < NewTheta.Len()) { res += AttrV[i] * NewTheta[i]; }
    }
    double mu = 1 / (1 + exp(-res));
    return mu;
}

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double TLogRegPredict::GetCfy

(

const TFltV &

AttrV

)

[inline]

Definition at line 188 of file agm.h.

References GetCfy(), and Theta.

Referenced by GetCfy().

{ return GetCfy(AttrV, Theta); }

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void TLogRegPredict::GetCfy	(	const TVec< TFltV > &	X,
		TFltV &	OutV
	)		[inline]

Definition at line 190 of file agm.h.

References GetCfy(), and Theta.

Referenced by GetCfy().

{ GetCfy(X, OutV, Theta); }

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void TLogRegPredict::GetTheta

(

TFltV &

_Theta

)

[inline]

Definition at line 189 of file agm.h.

References Theta.

{ _Theta = Theta; }

static PLogRegPredict TLogRegPredict::Load

(

TSIn &

SIn

)

[inline, static]

Definition at line 180 of file agm.h.

References TLogRegPredict().

{ return new TLogRegPredict(SIn); };

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void TLogRegPredict::PrintTheta

(

)

[inline]

Definition at line 191 of file agm.h.

References TVec< TVal, TSizeTy >::Len(), and Theta.

{ for (int t = 0; t < Theta.Len(); t++) { printf("Theta[%d] = %f\n", t, Theta[t].Val); } }

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void TLogRegPredict::Save

(

TSOut &

SOut

)

const [inline]

Definition at line 181 of file agm.h.

References TVec< TVal, TSizeTy >::Save(), and Theta.

{ Theta.Save(SOut); };

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TLogRegPredict::UndefDefaultCopyAssign

(

TLogRegPredict

)

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Friends And Related Function Documentation

friend class TPt< TLogRegPredict > [friend]

Definition at line 192 of file agm.h.

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Member Data Documentation

TCRef TLogRegPredict::CRef [private]

Definition at line 172 of file agm.h.

TFltV TLogRegPredict::Theta [private]

Definition at line 174 of file agm.h.

Referenced by GetCfy(), GetTheta(), PrintTheta(), Save(), and TLogRegPredict().

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

• snap-adv/agm.h
• snap-adv/agm.cpp