AbsoluteDeviations (PULsE 1.98 API)

java.lang.Object
- pulse.util.UpwardsNavigable
- - pulse.util.Group
  - - pulse.util.Accessible
    - - pulse.util.PropertyHolder
      - pulse.search.statistics.Statistic
        
        pulse.search.statistics.ResidualStatistic
        
        pulse.search.statistics.OptimiserStatistic
        
        pulse.search.statistics.AbsoluteDeviations

All Implemented Interfaces:

Serializable, Descriptive, Reflexive
```
public class AbsoluteDeviations
extends OptimiserStatistic
```
A statistical optimality criterion relying on absolute deviations or the L1 norm condition. Similar to the least squares technique, it attempts to find a function which closely approximates a set of data. However, unlike the L2 norm, it is much more robust to data outliers.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

AbsoluteDeviations()

AbsoluteDeviations(AbsoluteDeviations another)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`OptimiserStatistic`	`copy()`
`void`	`evaluate(GeneralTask t)`	Calculates the L1 norm statistic, which simply sums up the absolute values of residuals.
`String`	`getDescriptor()`	If not null, will return the prefix, otherwise calls the superclass method.
`double`	`variance()`

Methods inherited from class pulse.search.statistics.OptimiserStatistic
getSelectedOptimiserDescriptor, setSelectedOptimiserDescriptor

Methods inherited from class pulse.search.statistics.ResidualStatistic
calculateResiduals, calculateResiduals, calculateResiduals, equals, getResiduals, getStatistic, getTimeSequence, hashCode, residualsArray, set, setStatistic

Methods inherited from class pulse.util.PropertyHolder
addListener, areDetailsHidden, data, describe, firePropertyChanged, getListeners, getPrefix, ignoreSiblings, initListeners, isListedNumericType, isListedParameter, listedKeywords, listedTypes, numericData, parameterListChanged, removeListeners, setPrefix, updateProperties, updateProperty

Methods inherited from class pulse.util.Accessible
accessibleChildren, genericProperties, genericProperty, numericProperties, numericProperty, property, update, update

Methods inherited from class pulse.util.Group
access, children, contents, getSimpleName, subgroups

Methods inherited from class pulse.util.UpwardsNavigable
addHierarchyListener, getHierarchyListeners, getParent, identify, removeHierarchyListener, removeHierarchyListeners, setParent, specificAncestor, tellParent

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

- Constructor Detail
  - AbsoluteDeviations
```
public AbsoluteDeviations()
```
  - AbsoluteDeviations
```
public AbsoluteDeviations(AbsoluteDeviations another)
```
- Method Detail
  - evaluate
```
public void evaluate(GeneralTask t)
```
    Calculates the L1 norm statistic, which simply sums up the absolute values of residuals.
    
    Specified by:
    
    evaluate in class Statistic
    
    Parameters:
    
    t -
  - variance
```
public double variance()
```
    Specified by:
    
    variance in class OptimiserStatistic
  - getDescriptor
```
public String getDescriptor()
```
    Description copied from class: PropertyHolder
    
    If not null, will return the prefix, otherwise calls the superclass method.
    
    Overrides:
    
    getDescriptor in class PropertyHolder
    
    Returns:
    
    the descriptor
    
    See Also:
    
    Group.getSimpleName()
  - copy
```
public OptimiserStatistic copy()
```
    Specified by:
    
    copy in class OptimiserStatistic