Package ffx.numerics.integrate

Class CompositeCurve

java.lang.Object

ffx.numerics.integrate.FunctionDataCurve

ffx.numerics.integrate.CompositeCurve

All Implemented Interfaces:

DataSet

public class CompositeCurve
extends FunctionDataCurve

A CompositeCurve represents points along a sum of functions which also extend FunctionDataCurve.

Author:

Jacob M. Litman

Field Summary

Fields inherited from class ffx.numerics.integrate.FunctionDataCurve

halfWidthEnd, lb, points, ub, x

Constructor Summary

Constructors

Constructor	Description
CompositeCurve(List<FunctionDataCurve> componentCurves, List<Double> coefficients)	Constructs a CompositeCurve that aggregates multiple FunctionDataCurves with variable weights to each component FunctionDataCurve.

Method Summary

Modifier and Type	Method	Description
double	fX(double x)	Evaluates the function at x.
List<FunctionDataCurve>	getSubCurves()	Gets the component FunctionDataCurves of this CompositeCurve.
double[]	getWeights()	Gets the weights to the corresponding component curves.
double	integralAt(double x)	Analytical integral at a point.
String	toString()

Methods inherited from class ffx.numerics.integrate.FunctionDataCurve

analyticalIntegral, analyticalIntegral, approxEquals, approxEquals, assertXIntegrity, binWidth, getAllFxPoints, getFxPoint, getX, halfWidthEnds, lowerBound, numPoints, upperBound

Methods inherited from class java.lang.Object

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

Constructor Details

CompositeCurve

public CompositeCurve(List<FunctionDataCurve> componentCurves,
 @Nullable
 List<Double> coefficients)

Constructs a CompositeCurve that aggregates multiple FunctionDataCurves with variable weights to each component FunctionDataCurve.

Parameters:

componentCurves - Underlying FunctionDataCurves

coefficients - Weight to each component curve

Method Details

fX

public double fX(double x)

Evaluates the function at x.

Specified by:

fX in class FunctionDataCurve

Parameters:

x - x

Returns:

f(x)

getSubCurves

public List<FunctionDataCurve> getSubCurves()

Gets the component FunctionDataCurves of this CompositeCurve.

Returns:

List of component FunctionDataCurves.

getWeights

public double[] getWeights()

Gets the weights to the corresponding component curves.

Returns:

Constant weights

integralAt

public double integralAt(double x)

Analytical integral at a point.

Specified by:

integralAt in class FunctionDataCurve

Parameters:

x - Point

Returns:

Exact finite integral of 0 to this point

toString

public String toString()

Overrides:

toString in class FunctionDataCurve