RegModels::FracFit Function

void FracFit(TVec B, TVec X, TVec Y, int DegNom, int DegDenom, bool Constant = false, TVec Weights = null);

Fits rational fraction equation to data.

#	Name	Type	Description
1	B	TVec *	Returns regression coefficients for rational function.
2	X	TVec *	Vector of independent variable.
3	Y	TVec *	Vector of dependent variable.
4	DegNom	int	Nominator degree.
5	DegDenom	int	Denominator degree.
6	Constant = false	bool	If false, B[0] i.e. constant term in nominator is set to 0.0.
7	Weights = null	TVec *	Weights (optional). Weights are used only if they are set.

Remarks:

The routine fits equations to data by minimizing the sum of squared residuals. The observed values obey the following equation:

Y = \cfrac{b[0]+b[1]\cdot X + b[2]\cdot X^2 +\cdots + b[n]\cdot X^{n}}{1+b[n+1]\cdot X + \cdots + b[n+d]\cdot X^{d}}

where n and d are nominator and denominator polynomial degrees.

See Also: RegModels::FracEval

Declared in Dew::Stats::Units::RegModels · Dew.Stats/Units.RegModels.h · Cross-compiler