Smoothing.SavitskyGolay Method

public static Vector<double> SavitskyGolay(
	Vector<double> signal,
	int windowLength,
	int order,
	int derivative = 0,
	Padding padding = Padding.None,
	double paddedValue = 0
)

Public Shared Function SavitskyGolay ( 
	signal As Vector(Of Double),
	windowLength As Integer,
	order As Integer,
	Optional derivative As Integer = 0,
	Optional padding As Padding = Padding.None,
	Optional paddedValue As Double = 0
) As Vector(Of Double)

public:
static Vector<double>^ SavitskyGolay(
	Vector<double>^ signal, 
	int windowLength, 
	int order, 
	int derivative = 0, 
	Padding padding = Padding::None, 
	double paddedValue = 0
)

static member SavitskyGolay : 
        signal : Vector<float> * 
        windowLength : int * 
        order : int * 
        ?derivative : int * 
        ?padding : Padding * 
        ?paddedValue : float 
(* Defaults:
        let _derivative = defaultArg derivative 0
        let _padding = defaultArg padding Padding.None
        let _paddedValue = defaultArg paddedValue 0
*)
-> Vector<float> 

Parameters

signal  Vector<Double>

The signal to filter.

windowLength  Int32

The length of the smoothing window. Must be odd.

order  Int32

The order of the local polynomial.

derivative  Int32  (Optional)

(Optional.) The order of the derivative. The default is 0.

padding  Padding  (Optional)

(Optional.) Specifies how the signal is padded for calculations near the lower and upper bounds. The default value is None.

paddedValue  Double  (Optional)

(Optional.) If padding is Constant, the value to use for padding; ignored otherwise.

Return Value

This method smooths a signal by fitting a regression polynomial of degree order to a local neighbourhood of windowLength points around each data point and replacing its value with the value of the polynomial. The window length m Optionally, a smoothed derivative of the signal may be computed.

The padding argument determines how calculations will be performed near the boundaries of the signal. The default value, None, indicates that the signal is not padded. Instead, the same polynomial using the first or last windowLength points will be used to compute the first and last few smoothed values.

Reference