Package org.geotools.filter.function
Class QuantileFunction
- All Implemented Interfaces:
Expression
,Function
,FunctionExpression
,Factory
Breaks a SimpleFeatureCollection into classes with an equal number of items in each.
- Author:
- Cory Horner, Refractions Research Inc.
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Field Summary
FieldsFields inherited from class ClassificationFunction
LOGGER
Fields inherited from interface Expression
NIL
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionprotected QuantileListVisitor
Returns the list visitor for the specific implementation of "quantity" (e.g., count, area, ...).protected boolean
Methods inherited from class AbstractQuantityClassificationFunction
evaluate
Methods inherited from class ClassificationFunction
accept, computeGroupByPercentages, computePercentage, decimalPlaces, fixRound, getClasses, getFallbackValue, getFunctionName, getImplementationHints, getName, getParameters, getProgressListener, round, setClasses, setFallbackValue, setParameters, setProgressListener, toString
Methods inherited from class DefaultExpression
isAttributeExpression, isExpression, isFunctionExpression, isGeometryExpression, isLiteralExpression, isMathExpression
Methods inherited from class ExpressionAbstract
evaluate
Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
Methods inherited from interface Expression
evaluate
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Field Details
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NAME
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Constructor Details
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QuantileFunction
public QuantileFunction()
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Method Details
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getListVisitor
Description copied from class:AbstractQuantityClassificationFunction
Returns the list visitor for the specific implementation of "quantity" (e.g., count, area, ...). The visitor must return a "bins" structure matching {code}List[]{code}, where each array entry is a bin, and values inside the bin are sorted from lowest to highest - Specified by:
getListVisitor
in classAbstractQuantityClassificationFunction
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percentages
protected boolean percentages()- Specified by:
percentages
in classAbstractQuantityClassificationFunction
- Returns:
- true if percentages computation is enabled, false if not
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