SmoothingCubicSplineBasespcof1 Method

protected static void spcof1(
	double[] x,
	double avh,
	double[] y,
	double[] dy,
	int n,
	double p,
	double q,
	double[] a,
	double[][] C,
	int ic,
	double[] u,
	double[] v
)

Parameters

x  Double

Abscissae of the N data points. Must be ordered so that x[i] < x[i+1].

avh  Double

Average of the differences x(i+1) - x(i).

y  Double

Ordinates of the N data points.

dy  Double

Relative standard deviation of the error associated with the data point i. Each element must be positive. The values are scaled so that the sum of their squares is n.

n  Int32

Number of data points.

p  Double

Is equal to rho/(1 + rho), in which rho is the smoothing parameter.

q  Double

Is equal to 1/(1 + rho), in which rho is the smoothing parameter.

a  Double

Spline coefficients of order 0, i.e. the ordinate values of the spline (at the same abscissae values as the original data points).

C  Double

Spline coefficients of order 1, 2 and 3.

ic  Int32

Number of coefficents of order 1,2 and 3. Is one less the number of data points.

u  Double

Work array.

v  Double

Work array.

Reference