Inheritance diagram for ParametrizedCosine:

Public Member Functions
virtual unsigned int	parameterCount () const
virtual double	operator() (double x, const ublas::vector< double > &p) const
virtual ublas::vector< double >	dp (double x, const ublas::vector< double > &p) const
virtual ublas::matrix< double >	dp2 (double x, const ublas::vector< double > &p) const
Public Member Functions inherited from pwiz::frequency::ParametrizedFunction< double >
virtual	~ParametrizedFunction ()

Private Member Functions
void	preprocess (double x, const ublas::vector< double > &p) const

Private Attributes
double	x_
double	A_
double	B_
double	sinBx_
double	cosBx_

Detailed Description

Definition at line 92 of file ParametrizedFunctionTest.cpp.

Member Function Documentation

virtual unsigned int ParametrizedCosine::parameterCount ( ) const

inlinevirtual

Implements pwiz::frequency::ParametrizedFunction< double >.

Definition at line 98 of file ParametrizedFunctionTest.cpp.

{return 2;}

virtual double ParametrizedCosine::operator()	(	double	x,
		const ublas::vector< double > &	p
	)		const

inlinevirtual

Implements pwiz::frequency::ParametrizedFunction< double >.

Definition at line 100 of file ParametrizedFunctionTest.cpp.

    {
        preprocess(x,p);
        return A_*cosBx_;
    }

virtual ublas::vector<double> ParametrizedCosine::dp	(	double	x,
		const ublas::vector< double > &	p
	)		const

inlinevirtual

Implements pwiz::frequency::ParametrizedFunction< double >.

Definition at line 107 of file ParametrizedFunctionTest.cpp.

    {
        preprocess(x,p);
        ublas::vector<double> v(2);
        v(0) = cosBx_;          // dF/dA
        v(1) = -A_*x_*sinBx_;   // dF/dB
        return v;
    }

virtual ublas::matrix<double> ParametrizedCosine::dp2	(	double	x,
		const ublas::vector< double > &	p
	)		const

inlinevirtual

Implements pwiz::frequency::ParametrizedFunction< double >.

Definition at line 117 of file ParametrizedFunctionTest.cpp.

    {
        preprocess(x,p);
        ublas::matrix<double> m(2,2);
        m(0,0) = 0;                     // d2F/dA2
        m(1,0) = m(0,1) = -x_*sinBx_;   // d2F/dAdB
        m(1,1) = -A_*x_*x_*cosBx_;      // d2F/dB2
        return m;
    }

void ParametrizedCosine::preprocess	(	double	x,
		const ublas::vector< double > &	p
	)		const

inlineprivate

Definition at line 130 of file ParametrizedFunctionTest.cpp.

References x.

    {
        // check parameter size
        if (p.size() != parameterCount())
            throw logic_error("[Parabola] Wrong parameter size.");
        // cache arguments and do expensive calculations
        if (x!=x_ || p(0)!=A_ || p(1)!=B_)
        {
            x_ = x;
            A_ = p(0);
            B_ = p(1);
            sinBx_ = sin(B_*x);
            cosBx_ = cos(B_*x);
        }
        else
        {
            //if (os_) *os_ << "cache hit!\n";
        }
    }