ModeShape Distribution 3.0.0.Beta4

## org.modeshape.common.statistic Class SimpleStatistics<T extends Number>

```java.lang.Object org.modeshape.common.statistic.SimpleStatistics<T>
```
Type Parameters:
`T` - the number type used in these statistics
Direct Known Subclasses:
DetailedStatistics

```@ThreadSafe
public class SimpleStatistics<T extends Number>extends Object```

Encapsulation of the statistics for a series of values to which new values are frequently added. The statistics include the `minimum`, `maximum`, `total (aggregate sum)`, and `mean (average)`. See `DetailedStatistics` for a subclass that also calculates the `median`, `standard deviation` and the `histogram` of the values.

Field Summary
`protected  MathOperations<T>` `math`

Constructor Summary
`SimpleStatistics(MathOperations<T> operations)`

Method Summary
` void` `add(T value)`
Add a new value to these statistics.
`protected  void` `doAddValue(T value)`
A method that can be overridden by subclasses when `add` is called.
`protected  void` `doReset()`
Method that can be overridden by subclasses when `reset()` is called.
` int` `getCount()`
Get the number of values that have been measured.
`protected  ReadWriteLock` `getLock()`

` MathOperations<T>` `getMathOperations()`

` T` `getMaximum()`
Get the maximum value in the series.
` T` `getMean()`
Return the approximate mean (average) value represented as an instance of the operand type.
` double` `getMeanValue()`
Return the mean (average) value.
` T` `getMinimum()`
Get the minimum value in the series.
` T` `getTotal()`
Get the aggregate sum of the values in the series.
` void` `reset()`
Reset the statistics in this object, and clear out any stored information.
` String` `toString()`

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

Field Detail

### math

`protected final MathOperations<T extends Number> math`
Constructor Detail

### SimpleStatistics

`public SimpleStatistics(MathOperations<T> operations)`
Method Detail

`public void add(T value)`
Add a new value to these statistics.

Parameters:
`value` - the new value

`protected void doAddValue(T value)`
A method that can be overridden by subclasses when `add` is called. This method is called within the write lock, and does real work. Therefore, subclasses should call this method when they overwrite it.

Parameters:
`value` - the value already added

### getTotal

`public T getTotal()`
Get the aggregate sum of the values in the series.

Returns:
the total of the values, or 0.0 if the `count` is 0

### getMaximum

`public T getMaximum()`
Get the maximum value in the series.

Returns:
the maximum value, or 0.0 if the `count` is 0

### getMinimum

`public T getMinimum()`
Get the minimum value in the series.

Returns:
the minimum value, or 0.0 if the `count` is 0

### getCount

`public int getCount()`
Get the number of values that have been measured.

Returns:
the count

### getMean

`public T getMean()`
Return the approximate mean (average) value represented as an instance of the operand type. Note that this may truncate if the operand type is not able to have the required precision. For the accurate mean, see `getMeanValue()`.

Returns:
the mean (average), or 0.0 if the `count` is 0

### getMeanValue

`public double getMeanValue()`
Return the mean (average) value.

Returns:
the mean (average), or 0.0 if the `count` is 0
`getMean()`

### reset

`public void reset()`
Reset the statistics in this object, and clear out any stored information.

### getMathOperations

`public MathOperations<T> getMathOperations()`

### getLock

`protected ReadWriteLock getLock()`

### doReset

`protected void doReset()`
Method that can be overridden by subclasses when `reset()` is called. This method is called while the object is locked for write and does work; therefore, the subclass should call this method.

### toString

`public String toString()`
Overrides:
`toString` in class `Object`

ModeShape Distribution 3.0.0.Beta4