OPTICSXi.SteepScanPosition (ELKI: Environment for DeveLoping KDD-Applications Supported by Index-Structures)

java.lang.Object
- elki.clustering.optics.OPTICSXi.SteepScanPosition

Enclosing class:

OPTICSXi
```
private static class OPTICSXi.SteepScanPosition
extends java.lang.Object
```
Position when scanning for steep areas

Author:

Erich Schubert

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) ClusterOrder`	`co`	Cluster order
`private DBIDArrayIter`	`cur`	Variable for accessing.
`(package private) int`	`index`	Current position
`private DBIDArrayIter`	`next`	Variable for accessing.
`private FiniteProgress`	`prog`	Progress for logging.

Constructor Summary

Constructors
Constructor Description

SteepScanPosition(ClusterOrder co)
Constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`double`	`getNextReachability()`	Get current reachability.
`double`	`getReachability()`	Get current reachability.
`boolean`	`hasNext()`	Test whether there is a next value.
`void`	`next()`	Advance to the next entry
`boolean`	`steepDown(double ixi)`	Test for a steep down area.
`boolean`	`steepUp(double ixi)`	Test for a steep up point.

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

- Field Detail
  - co
```
ClusterOrder co
```
    Cluster order
  - index
```
int index
```
    Current position
  - cur
```
private DBIDArrayIter cur
```
    Variable for accessing.
  - next
```
private DBIDArrayIter next
```
    Variable for accessing.
  - prog
```
private FiniteProgress prog
```
    Progress for logging.
- Constructor Detail
  - SteepScanPosition
```
public SteepScanPosition(ClusterOrder co)
```
    Constructor.
    
    Parameters:
    
    co - Cluster order
- Method Detail
  - next
```
public void next()
```
    Advance to the next entry
  - hasNext
```
public boolean hasNext()
```
    Test whether there is a next value.
    
    Returns:
    
    end of cluster order
  - steepUp
```
public boolean steepUp(double ixi)
```
    Test for a steep up point.
    
    Parameters:
    
    ixi - steepness factor (1-xi)
    
    Returns:
    
    truth value
  - steepDown
```
public boolean steepDown(double ixi)
```
    Test for a steep down area.
    
    Parameters:
    
    ixi - Steepness factor (1-xi)
    
    Returns:
    
    truth value
  - getReachability
```
public double getReachability()
```
    Get current reachability.
    
    Returns:
    
    Reachability
  - getNextReachability
```
public double getNextReachability()
```
    Get current reachability.
    
    Returns:
    
    Reachability