Package etomica.math.numerical

Class AkimaSplineSmootherDy

java.lang.Object

etomica.math.numerical.AkimaSplineSmoother

etomica.math.numerical.AkimaSplineSmootherDy

public class AkimaSplineSmootherDy
extends AkimaSplineSmoother

Optimization algorithm which attempts to smooth data without moving any point far from its original location. AkimaSplineSmootherDy specifically attempts to find a smooth function for dy/dx, which when integrated yields a function that matches the original y(x) within the original error bars.

Field Summary

Fields

Modifier and Type	Field	Description
protected double[]	iy
protected double	ssInit

Fields inherited from class etomica.math.numerical.AkimaSplineSmoother

d2dfac, d2fac, d3dfac, d3fac, dy12, ey, lx, ly, m, nAccepted, nAttempt, nTrial, oy, pac, random, ss, sumSqD2, sumSqD2D, sumSqD3, sumSqD3D, sumSqDy, t, totSqErr, trialP, x, y, y0

Constructor Summary

Constructors

Constructor	Description
AkimaSplineSmootherDy(IRandom random)

Method Summary

Modifier and Type	Method	Description
protected double	calcErr(int idataMin, int idataMax)
void	doShiftInitY()
void	doStep()
double[]	getIy()	calculate the cumulative integral of y, interpolating dy/dx with a spline curve
void	setInputData(double[] originalX, double[] originalY, double[] ey)
void	setInputData(double[] originalX, double[] originalY, double[] initDy, double[] ey)	Set the nominal values for x and y and uncertainty in y (ey).

Methods inherited from class etomica.math.numerical.AkimaSplineSmoother

doInterpolateHole, doInterpolateHole2, doRandStep, getD2dfac, getD2fac, getD3dfac, getD3fac, getDy12, setD2dfac, setD2fac, setD3dfac, setD3fac, setSmoothedY

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

iy

protected double[] iy

ssInit

protected double ssInit

Constructor Detail

AkimaSplineSmootherDy

public AkimaSplineSmootherDy(IRandom random)

Method Detail

doShiftInitY

public void doShiftInitY()

doStep

public void doStep()

Overrides:

doStep in class AkimaSplineSmoother

calcErr

protected double calcErr(int idataMin,
                         int idataMax)

Overrides:

calcErr in class AkimaSplineSmoother

getIy

public double[] getIy()

calculate the cumulative integral of y, interpolating dy/dx with a spline curve

setInputData

public void setInputData(double[] originalX,
                         double[] originalY,
                         double[] ey)

Overrides:

setInputData in class AkimaSplineSmoother

setInputData

public void setInputData(double[] originalX,
                         double[] originalY,
                         double[] initDy,
                         double[] ey)

Set the nominal values for x and y and uncertainty in y (ey). Also give an initial estimate for dy/dx (initDy)