java.lang.Object
- org.gephi.utils.StatisticsUtils

```
public class StatisticsUtils
extends Object
```
Class with some statistics methods for calculating values such as the average, median, sum, max and min of a list of numbers.

Author:

Eduardo Ramos

Constructor Summary

Constructors
Constructor Description

StatisticsUtils()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static BigDecimal`	`average(Number[] numbers)`	Get average calculation of various numbers as a BigDecimal.
`private static BigDecimal`	`average(BigDecimal sum, BigDecimal numbersCount)`	*******Private methods:********
`static BigDecimal`	`average(Collection<Number> numbers)`	Get average calculation of various numbers as a BigDecimal.
`static BigDecimal[]`	`getAllStatistics(Number[] numbers)`	Calculates all statistics and returns them in a `BigDecimal` numbers array.
`static BigDecimal[]`	`getAllStatistics(Collection<Number> numbers)`	Calculates all statistics and returns them in a `BigDecimal` numbers array.
`static BigDecimal`	`maxValue(Number[] numbers)`	Get the maximum value of an array of Number elements as a BigDecimal.
`private static BigDecimal`	`maxValue(BigDecimal[] bigDecimalNumbers)`
`static BigDecimal`	`maxValue(Collection<Number> numbers)`	Get the maximum value of a collection of Number elements as a BigDecimal.
`static BigDecimal`	`median(Number[] numbers)`	Calculate median of various numbers as a BigDecimal.
`private static BigDecimal`	`median(BigDecimal[] bigDecimalNumbers)`
`private static BigDecimal`	`median(BigDecimal[] bigDecimalNumbers, int start, int end)`
`static BigDecimal`	`median(Collection<Number> numbers)`	Calculate median of various numbers as a BigDecimal.
`static BigDecimal`	`minValue(Number[] numbers)`	Get the minimum value of an array of Number elements as a BigDecimal.
`private static BigDecimal`	`minValue(BigDecimal[] bigDecimalNumbers)`
`static BigDecimal`	`minValue(Collection<Number> numbers)`	Get the minimum value of a collection of Number elements as a BigDecimal.
`static BigDecimal[]`	`numbersArrayToSortedBigDecimalArray(Number[] numbers)`	Takes an array of numbers of any type combination and returns an array with their BigDecimal equivalent numbers.
`static BigDecimal`	`quartile1(Number[] numbers)`	Calculate first quartile (Q1) of various numbers as a BigDecimal.
`private static BigDecimal`	`quartile1(BigDecimal[] bigDecimalNumbers)`
`static BigDecimal`	`quartile1(Collection<Number> numbers)`	Calculate first quartile (Q1) of various numbers as a BigDecimal.
`static BigDecimal`	`quartile3(Number[] numbers)`	Calculate third quartile (Q3) of various numbers as a BigDecimal.
`private static BigDecimal`	`quartile3(BigDecimal[] bigDecimalNumbers)`
`static BigDecimal`	`quartile3(Collection<Number> numbers)`	Calculate third quartile (Q3) of various numbers as a BigDecimal.
`static BigDecimal`	`sum(Number[] numbers)`	Get sum of various numbers as a BigDecimal.
`private static BigDecimal`	`sum(BigDecimal[] bigDecimalNumbers)`
`static BigDecimal`	`sum(Collection<Number> numbers)`	Get sum of various numbers as a BigDecimal.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - StatisticsUtils
```
public StatisticsUtils()
```
- Method Detail
  - average
```
public static BigDecimal average(Number[] numbers)
```
    Get average calculation of various numbers as a BigDecimal.
    Null values will not be counted.
    
    Parameters:
    
    numbers - Numbers to calculate average
    
    Returns:
    
    Average as a BigDecimal
  - average
```
public static BigDecimal average(Collection<Number> numbers)
```
    Get average calculation of various numbers as a BigDecimal.
    Null values will not be counted.
    
    Parameters:
    
    numbers - Numbers to calculate average
    
    Returns:
    
    Average as a BigDecimal
  - median
```
public static BigDecimal median(Number[] numbers)
```
    Calculate median of various numbers as a BigDecimal.
    The elements can't be null.
    The elements don't need to be sorted.
    
    Parameters:
    
    numbers - Not null numbers to calculate median
    
    Returns:
    
    Median as a BigDecimal
  - median
```
public static BigDecimal median(Collection<Number> numbers)
```
    Calculate median of various numbers as a BigDecimal.
    The elements can't be null.
    The elements don't need to be sorted.
    
    Parameters:
    
    numbers - Not null numbers to calculate median
    
    Returns:
    
    Median as a BigDecimal
  - quartile1
```
public static BigDecimal quartile1(Number[] numbers)
```
    Calculate first quartile (Q1) of various numbers as a BigDecimal.
    The elements can't be null.
    The elements don't need to be sorted.
    
    Parameters:
    
    numbers - Not null numbers to calculate Q1
    
    Returns:
    
    Q1 as a BigDecimal
  - quartile1
```
public static BigDecimal quartile1(Collection<Number> numbers)
```
    Calculate first quartile (Q1) of various numbers as a BigDecimal.
    The elements can't be null.
    The elements don't need to be sorted.
    
    Parameters:
    
    numbers - Not null numbers to calculate Q1
    
    Returns:
    
    Q1 as a BigDecimal
  - quartile3
```
public static BigDecimal quartile3(Number[] numbers)
```
    Calculate third quartile (Q3) of various numbers as a BigDecimal.
    The elements can't be null.
    The elements don't need to be sorted.
    
    Parameters:
    
    numbers - Not null numbers to calculate Q3
    
    Returns:
    
    Q3 as a BigDecimal
  - quartile3
```
public static BigDecimal quartile3(Collection<Number> numbers)
```
    Calculate third quartile (Q3) of various numbers as a BigDecimal.
    The elements can't be null.
    The elements don't need to be sorted.
    
    Parameters:
    
    numbers - Not null numbers to calculate Q3
    
    Returns:
    
    Q3 as a BigDecimal
  - sum
```
public static BigDecimal sum(Number[] numbers)
```
    Get sum of various numbers as a BigDecimal.
    Null values will not be counted.
    
    Parameters:
    
    numbers - Numbers to calculate sum
    
    Returns:
    
    Sum as a BigDecimal
  - sum
```
public static BigDecimal sum(Collection<Number> numbers)
```
    Get sum of various numbers as a BigDecimal.
    Null values will not be counted.
    
    Parameters:
    
    numbers - Numbers to calculate sum
    
    Returns:
    
    Sum as a BigDecimal
  - minValue
```
public static BigDecimal minValue(Number[] numbers)
```
    Get the minimum value of an array of Number elements as a BigDecimal.
    The elements can't be null.
    The elements don't need to be sorted.
    
    Parameters:
    
    numbers - Numbers to get min
    
    Returns:
    
    Minimum value as a BigDecimal
  - minValue
```
public static BigDecimal minValue(Collection<Number> numbers)
```
    Get the minimum value of a collection of Number elements as a BigDecimal.
    The elements can't be null.
    The elements don't need to be sorted.
    
    Parameters:
    
    numbers - Numbers to get min
    
    Returns:
    
    Minimum value as a BigDecimal
  - maxValue
```
public static BigDecimal maxValue(Number[] numbers)
```
    Get the maximum value of an array of Number elements as a BigDecimal.
    The elements can't be null.
    The elements don't need to be sorted.
    
    Parameters:
    
    numbers - Numbers to get max
    
    Returns:
    
    Maximum value as a BigDecimal
  - maxValue
```
public static BigDecimal maxValue(Collection<Number> numbers)
```
    Get the maximum value of a collection of Number elements as a BigDecimal.
    The elements can't be null.
    The elements don't need to be sorted.
    
    Parameters:
    
    numbers - Numbers to get max
    
    Returns:
    
    Maximum value as a BigDecimal
  - getAllStatistics
```
public static BigDecimal[] getAllStatistics(Number[] numbers)
```
    Calculates all statistics and returns them in a BigDecimal numbers array.
    Using this will be faster than calling all statistics separately.
    Returns an array of length=8 of BigDecimal numbers with the results in the following order:
    
    average
    
    first quartile (Q1)
    
    median
    
    third quartile (Q3)
    
    interquartile range (IQR)
    
    sum
    
    minimumValue
    
    maximumValue
    
    The elements can't be null.
    The elements don't need to be sorted.
    Parameters:
    
    numbers - Numbers to get all statistics
    
    Returns:
    
    Array with all statistics
  - getAllStatistics
```
public static BigDecimal[] getAllStatistics(Collection<Number> numbers)
```
    Calculates all statistics and returns them in a BigDecimal numbers array.
    Using this will be faster than calling all statistics separately.
    Returns an array of length=8 of BigDecimal numbers with the results in the following order:
    
    average
    
    first quartile (Q1)
    
    median
    
    third quartile (Q3)
    
    interquartile range (IQR)
    
    sum
    
    minimumValue
    
    maximumValue
    
    The elements can't be null.
    The elements don't need to be sorted.
    Parameters:
    
    numbers - Numbers to get all statistics
    
    Returns:
    
    Array with all statistics
  - numbersArrayToSortedBigDecimalArray
```
public static BigDecimal[] numbersArrayToSortedBigDecimalArray(Number[] numbers)
```
    Takes an array of numbers of any type combination and returns an array with their BigDecimal equivalent numbers.
    
    Parameters:
    
    numbers - input
    
    Returns:
    
    BigDecimal array
  - average
```
private static BigDecimal average(BigDecimal sum,
                                  BigDecimal numbersCount)
```
    *********Private methods:**********
  - median
```
private static BigDecimal median(BigDecimal[] bigDecimalNumbers)
```
  - median
```
private static BigDecimal median(BigDecimal[] bigDecimalNumbers,
                                 int start,
                                 int end)
```
  - quartile1
```
private static BigDecimal quartile1(BigDecimal[] bigDecimalNumbers)
```
  - quartile3
```
private static BigDecimal quartile3(BigDecimal[] bigDecimalNumbers)
```
  - sum
```
private static BigDecimal sum(BigDecimal[] bigDecimalNumbers)
```
  - minValue
```
private static BigDecimal minValue(BigDecimal[] bigDecimalNumbers)
```
  - maxValue
```
private static BigDecimal maxValue(BigDecimal[] bigDecimalNumbers)
```

Class StatisticsUtils

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

StatisticsUtils

Method Detail

average

average

median

median

quartile1

quartile1

quartile3

quartile3

sum

sum

minValue

minValue

maxValue

maxValue

getAllStatistics

getAllStatistics

numbersArrayToSortedBigDecimalArray

average

median

median

quartile1

quartile3

sum

minValue

maxValue