com.klg.jclass.util.formulae
Class Average

java.lang.Object
  |
  +--com.klg.jclass.util.formulae.Operation
        |
        +--com.klg.jclass.util.formulae.Average

All Implemented Interfaces:

Cloneable, Expression

public class Average

extends Operation

This is a concrete implementation for the average operation. Average (arithmetic mean) is defined as the total value of all elements, divided by the number of elements.

Field Summary

Fields inherited from class com.klg.jclass.util.formulae.Operation

leftOperand, rightOperand

Constructor Summary

Average(com.klg.jclass.util.formulae.Expression operand)
Average across the given operand (usually a list of expressions)

Average(com.klg.jclass.util.formulae.Expression left, com.klg.jclass.util.formulae.Expression right)
Average a pair of Expressions

Average(com.klg.jclass.util.formulae.Expression left, Number right)
Average an Expression and a Number

Average(Number left, com.klg.jclass.util.formulae.Expression right)
Average a Number and an Expression

Average(Number left, Number right)
Average two Numbers

Method Summary

com.klg.jclass.util.formulae.Result

evaluate() Return the result of averaging the operands

Methods inherited from class com.klg.jclass.util.formulae.Operation

clone

Methods inherited from class java.lang.Object

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

Constructor Detail

Average

public Average(com.klg.jclass.util.formulae.Expression operand)

Average across the given operand (usually a list of expressions)

Average

public Average(com.klg.jclass.util.formulae.Expression left,
               com.klg.jclass.util.formulae.Expression right)

Average a pair of Expressions

Average

public Average(com.klg.jclass.util.formulae.Expression left,
               Number right)

Average an Expression and a Number

Average

public Average(Number left,
               com.klg.jclass.util.formulae.Expression right)

Average a Number and an Expression

Average

public Average(Number left,
               Number right)

Average two Numbers

Method Detail

evaluate

public com.klg.jclass.util.formulae.Result evaluate()

Return the result of averaging the operands

Specified by:

evaluate in interface Expression

Specified by:

evaluate in class Operation

Returns:

The average value of all the operands