StatSummary

java.lang.Object
- tools.StatSummary

```
public class StatSummary
extends java.lang.Object
```
This class is used to model the statistics of a fix of numbers. For the statistics we choose here it is not necessary to store all the numbers - just keeping a running total of how many, the sum and the sum of the squares is sufficient (plus max and min, for max and min). This is a simpler version of StatisticalSummary that does not include statistical tests, or the Watch class.

Field Summary

Fields
Modifier and Type Field and Description

java.lang.String name

Fields
Modifier and Type	Field and Description
`java.lang.String`	`name`

Constructor Summary

Constructors
Constructor and Description

StatSummary()

StatSummary(java.lang.String name)

Constructors
Constructor and Description
`StatSummary()`
`StatSummary(java.lang.String name)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`add(double... xa)`
`void`	`add(double d)`
`void`	`add(java.lang.Number n)`
`void`	`add(StatSummary ss)`
`StatSummary`	`copy()`
`double`	`max()`
`double`	`mean()`
`double`	`min()`
`int`	`n()`
`void`	`reset()`
`double`	`sd()`
`double`	`stdErr()`
`double`	`sum()`
`double`	`sumSquareDiff()`
`java.lang.String`	`toString()`

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

Field Detail
- name
```
public java.lang.String name
```

Constructor Detail

StatSummary
```
public StatSummary()
```

StatSummary

public StatSummary(java.lang.String name)

Method Detail

reset
```
public final void reset()
```

max
```
public double max()
```

min
```
public double min()
```

mean
```
public double mean()
```

sumSquareDiff
```
public double sumSquareDiff()
```

sd
```
public double sd()
```

n
```
public int n()
```

stdErr
```
public double stdErr()
```

add
```
public void add(StatSummary ss)
```

add
```
public void add(double d)
```

add
```
public void add(java.lang.Number n)
```

add
```
public void add(double... xa)
```

toString
```
public java.lang.String toString()
```
Overrides:

toString in class java.lang.Object

sum
```
public double sum()
```

copy
```
public StatSummary copy()
```

Class StatSummary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

name

Constructor Detail

StatSummary

StatSummary

Method Detail

reset

max

min

mean

sumSquareDiff

sd

n

stdErr

add

add

add

add

toString

sum

copy