subpavings::PenAIC4 Class Reference

Class for penalty function 4 for AIC. More...

Inheritance diagram for subpavings::PenAIC4:

Collaboration diagram for subpavings::PenAIC4:

List of all members.

Public Member Functions
	PenAIC4 (double cc)
cxsc::real	operator() (const AdaptiveHistogram *const adh, int deltaLeaf) const
	the penalty function.

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Detailed Description

Class for penalty function 4 for AIC.

Penalty is just some multiple of logCatK. Should have c = 0.5 to stop splitting on one point with AIC EMP, or with c=2, penalty before taking logs is (CatK)^2).

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Member Function Documentation

real subpavings::PenAIC4::operator()	(	const AdaptiveHistogram *const	adh,
		int	deltaLeaf
	)		const [virtual]

the penalty function.

Parameters:

adh	is the histogram object to calculate the penalty on.
deltaLeaf	change in number leaves to take into account.

Returns:

the penalty as a cxsc::real.

Implements subpavings::PenObj.

  {
    dotprecision penalty(0.0);

    int k = adh->getRootLeaves() + deltaLeaf - 1; // leaves-1
    double logCatk= lCk(k);

    accumulate(penalty, c, logCatk); // pen = c*logCatk

    return (rnd(penalty));
    // return c*logCatk
  }

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

• histpenalty.hpp
• histpenalty.cpp