HistogramStatistics (Flink : 2.0-SNAPSHOT API)

java.lang.Object
- org.apache.flink.metrics.HistogramStatistics

Direct Known Subclasses:

DescriptiveStatisticsHistogramStatistics
```
@Public
public abstract class HistogramStatistics
extends Object
```
Histogram statistics represent the current snapshot of elements recorded in the histogram.
The histogram statistics allow to calculate values for quantiles, the mean, the standard deviation, the minimum and the maximum.

Constructor Summary

Constructors
Constructor Description

HistogramStatistics()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`abstract long`	`getMax()`	Returns the maximum value of the histogram.
`abstract double`	`getMean()`	Returns the mean of the histogram values.
`abstract long`	`getMin()`	Returns the minimum value of the histogram.
`abstract double`	`getQuantile(double quantile)`	Returns the value for the given quantile based on the represented histogram statistics.
`abstract double`	`getStdDev()`	Returns the standard deviation of the distribution reflected by the histogram statistics.
`abstract long[]`	`getValues()`	Returns the elements of the statistics' sample.
`abstract int`	`size()`	Returns the size of the statistics' sample.

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

- Constructor Detail
  - HistogramStatistics
```
public HistogramStatistics()
```
- Method Detail
  - getQuantile
```
public abstract double getQuantile(double quantile)
```
    Returns the value for the given quantile based on the represented histogram statistics.
    
    Parameters:
    
    quantile - Quantile to calculate the value for
    
    Returns:
    
    Value for the given quantile
  - getValues
```
public abstract long[] getValues()
```
    Returns the elements of the statistics' sample.
    
    Returns:
    
    Elements of the statistics' sample
  - size
```
public abstract int size()
```
    Returns the size of the statistics' sample.
    
    Returns:
    
    Size of the statistics' sample
  - getMean
```
public abstract double getMean()
```
    Returns the mean of the histogram values.
    
    Returns:
    
    Mean of the histogram values
  - getStdDev
```
public abstract double getStdDev()
```
    Returns the standard deviation of the distribution reflected by the histogram statistics.
    
    Returns:
    
    Standard deviation of histogram distribution
  - getMax
```
public abstract long getMax()
```
    Returns the maximum value of the histogram.
    
    Returns:
    
    Maximum value of the histogram
  - getMin
```
public abstract long getMin()
```
    Returns the minimum value of the histogram.
    
    Returns:
    
    Minimum value of the histogram