Statistic (SmallRye Mutiny - Math operators 2.0.0-milestone3 API)

java.lang.Object
- io.smallrye.mutiny.math.Statistic<T>

Type Parameters:

T - the type of the element (Number and Comparable)
```
public class Statistic<T>
extends java.lang.Object
```
A state object for collecting statistics such as count, average, min, max, variance, standard deviation, skewness, and kurtosis.
- Count: the number of element emitted by the upstream, 0 for empty streams.
- Average: the average of the element emitted by the upstream, 0.0 for empty streams.
- Min: the minimum element emitted by the upstream, null for empty streams.
- Max: the maximum element emitted by the upstream, null for empty streams.
- Variance: squared deviation of a items from the upstreams. It measures how far a set of items is spread out from their average value.
- Standard Deviation: measure of the dispersion of the set of items. A low standard deviation indicates that the values tend to be close to the current average, while a high standard deviation indicates that the items are spread out over a wider range.
- Skewness: measure of the asymmetry of the distribution of the emitted items about its average. The skewness value can be positive, zero, negative, or NaN.
- Kurtosis: statistical measure that defines how heavily the tails of a item distribution differ from the tails of a normal distribution.
Computation is based on https://www.johndcook.com/blog/skewness_kurtosis/.

Constructor Summary

Constructors
Constructor Description

Statistic(long n, double m1, double m2, double m3, double m4, T min, T max)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(java.lang.Object o)`
`double`	`getAverage()`
`long`	`getCount()`
`double`	`getKurtosis()`
`T`	`getMax()`
`T`	`getMin()`
`double`	`getSkewness()`
`double`	`getStandardDeviation()`
`double`	`getVariance()`
`int`	`hashCode()`
`java.lang.String`	`toString()`

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

- Constructor Detail
  - Statistic
```
public Statistic(long n,
                 double m1,
                 double m2,
                 double m3,
                 double m4,
                 T min,
                 T max)
```
- Method Detail
  - getAverage
```
public double getAverage()
```
    Returns:
    
    the average (mean) of the emitted items.
  - getVariance
```
public double getVariance()
```
    Returns:
    
    the variance of the emitted items
  - getStandardDeviation
```
public double getStandardDeviation()
```
    Returns:
    
    the standard deviation
  - getSkewness
```
public double getSkewness()
```
    Returns:
    
    the skewness, can be NaN
  - getKurtosis
```
public double getKurtosis()
```
    Returns:
    
    the kurtosis, can be Nan
  - getCount
```
public long getCount()
```
    Returns:
    
    the number of items
  - getMin
```
public T getMin()
```
    Returns:
    
    the minimum item, null if no items have been emitted
  - getMax
```
public T getMax()
```
    Returns:
    
    the maximum item, null if no items have been emitted
  - equals
```
public boolean equals(java.lang.Object o)
```
    Overrides:
    
    equals in class java.lang.Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class java.lang.Object
  - toString
```
public java.lang.String toString()
```
    Overrides:
    
    toString in class java.lang.Object