|
JIDE Common Layer 2.7.6 | ||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |
java.lang.Objectcom.jidesoft.utils.BigDecimalMathUtils
public final class BigDecimalMathUtils
A collection of several util methods related to BigDecimal. We only used it in BigDecimalSummaryCalculator in JIDE Pivot Grid. but this class will be reserved as a place holder for methods related to BigDecimal.
Field Summary | |
---|---|
static java.math.BigDecimal |
TWO
|
Constructor Summary | |
---|---|
protected |
BigDecimalMathUtils()
|
Method Summary | |
---|---|
static void |
main(java.lang.String[] args)
|
static java.math.BigDecimal |
max(java.util.List<java.math.BigDecimal> numbers)
Returns the max number in the numbers list. |
static java.math.BigDecimal |
mean(java.util.List<java.math.BigDecimal> numbers,
java.math.MathContext context)
Returns the mean number in the numbers list. |
static java.math.BigDecimal |
min(java.util.List<java.math.BigDecimal> numbers)
Returns the min number in the numbers list. |
static java.math.BigDecimal |
sqrt(java.math.BigDecimal number)
Calcualtes the square root of the number. |
static java.math.BigDecimal |
stddev(java.util.List<java.math.BigDecimal> numbers,
boolean biasCorrected,
java.math.MathContext context)
Returns the standard deviation of the numbers. |
static java.math.BigDecimal |
sum(java.util.List<java.math.BigDecimal> numbers)
Returns the sum number in the numbers list. |
static java.math.BigDecimal |
var(java.util.List<java.math.BigDecimal> numbers,
boolean biasCorrected,
java.math.MathContext context)
Computes the variance of the available values. |
Methods inherited from class java.lang.Object |
---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
---|
public static final java.math.BigDecimal TWO
Constructor Detail |
---|
protected BigDecimalMathUtils()
Method Detail |
---|
public static java.math.BigDecimal sum(java.util.List<java.math.BigDecimal> numbers)
numbers
- the numbers to calculate the sum.
public static java.math.BigDecimal mean(java.util.List<java.math.BigDecimal> numbers, java.math.MathContext context)
numbers
- the numbers to calculate the mean.context
- the MathContext.
public static java.math.BigDecimal min(java.util.List<java.math.BigDecimal> numbers)
numbers
- the numbers to calculate the min.
public static java.math.BigDecimal max(java.util.List<java.math.BigDecimal> numbers)
numbers
- the numbers to calculate the max.
public static java.math.BigDecimal stddev(java.util.List<java.math.BigDecimal> numbers, boolean biasCorrected, java.math.MathContext context)
numbers
- the numbers to calculate the standard deviation.biasCorrected
- true if variance is calculated by dividing by n - 1. False if by n. stddev is a sqrt of the
variance.context
- the MathContext
public static java.math.BigDecimal var(java.util.List<java.math.BigDecimal> numbers, boolean biasCorrected, java.math.MathContext context)
biasCorrected
property determines whether the "population" or "sample" value is returned by the
evaluate
and getResult
methods. To compute population variances, set this property to
false
.
numbers
- the numbers to calculate the variance.biasCorrected
- true if variance is calculated by dividing by n - 1. False if by n.context
- the MathContext
public static java.math.BigDecimal sqrt(java.math.BigDecimal number)
number
- the input number.
public static void main(java.lang.String[] args)
|
JIDE Common Layer 2.7.6 | ||||||||
PREV CLASS NEXT CLASS | FRAMES NO FRAMES | ||||||||
SUMMARY: NESTED | FIELD | CONSTR | METHOD | DETAIL: FIELD | CONSTR | METHOD |