Package nz.org.riskscape.defaults.curves

Class FitCurveFunction

java.lang.Object

nz.org.riskscape.defaults.curves.FitCurveFunction

All Implemented Interfaces:

nz.org.riskscape.engine.rl.agg.AggregationFunction

public class FitCurveFunction
extends Object
implements nz.org.riskscape.engine.rl.agg.AggregationFunction

Aggregate function for fitting a collected set of x/y values to a curve. So far, we've only got power law, but I expect this to be extended to a range of functions, and allow options for different types of functions, e.g. try the different positively monotonic functions for loss curves, or perhaps just pick from an explicit list.

TODO add support for selecting which curves and setting the curve fitting parameters

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	FitCurveFunction.LocalProblems

Field Summary

Fields

Modifier and Type	Field	Description
static final FitCurveFunction.LocalProblems	PROBLEMS

Constructor Summary

Constructors

Constructor	Description
FitCurveFunction(List<CurveFitter<?>> fitters)

Method Summary

Modifier and Type	Method	Description
nz.org.riskscape.engine.function.ArgumentList	getArguments()
nz.org.riskscape.engine.types.Type	getReturnType()
nz.org.riskscape.problem.ResultOrProblems<nz.org.riskscape.engine.rl.agg.RealizedAggregateExpression>	realize(nz.org.riskscape.engine.rl.RealizationContext context, nz.org.riskscape.engine.types.Type inputType, nz.org.riskscape.rl.ast.FunctionCall fc)

Methods inherited from class java.lang.Object

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

Field Details

PROBLEMS

public static final FitCurveFunction.LocalProblems PROBLEMS

Constructor Details

FitCurveFunction

public FitCurveFunction(List<CurveFitter<?>> fitters)

Method Details

realize

public nz.org.riskscape.problem.ResultOrProblems<nz.org.riskscape.engine.rl.agg.RealizedAggregateExpression> realize(nz.org.riskscape.engine.rl.RealizationContext context,
 nz.org.riskscape.engine.types.Type inputType,
 nz.org.riskscape.rl.ast.FunctionCall fc)

Specified by:

realize in interface nz.org.riskscape.engine.rl.agg.AggregationFunction

getArguments

public nz.org.riskscape.engine.function.ArgumentList getArguments()

Specified by:

getArguments in interface nz.org.riskscape.engine.rl.agg.AggregationFunction

getReturnType

public nz.org.riskscape.engine.types.Type getReturnType()

Specified by:

getReturnType in interface nz.org.riskscape.engine.rl.agg.AggregationFunction