ProbabilityManager (Ontopia)

java.lang.Object
- net.ontopia.topicmaps.viz.ProbabilityManager

```
public class ProbabilityManager
extends Object
```
Manages probability values for given keys, so that all probability values always add up to 1. If a new probability value is added, the other values are added. This can be used to build up a probability distribution incrementally while ensuring that the probabilities never add up to more than 1, i.e. 100%. Currently not used anywhere. Should add a method that guesses a 0.0 ... 1.0 number and returns a corresponding key.

Constructor Summary

Constructors
Constructor Description

ProbabilityManager(Object key)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`addProbability(Object key, Object compKey, double compFactor)`	Set key to be compKey * compFactor and adjust all values so that they still add up to 1 and at the same time, the value of compKey remains the same relative to other values.
`Double`	`getProbability(Object key)`
`double`	`getProbabilityValue(Object key)`
`Object`	`guessKey()`
`Object`	`guessKey(double valueGuess)`
`static void`	`test()`

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

- Constructor Detail
  - ProbabilityManager
```
public ProbabilityManager(Object key)
```
- Method Detail
  - addProbability
```
public void addProbability(Object key,
                           Object compKey,
                           double compFactor)
```
    Set key to be compKey * compFactor and adjust all values so that they still add up to 1 and at the same time, the value of compKey remains the same relative to other values.
    
    Parameters:
    
    key - The key to add (may be there already, in which case it's changed
    
    compKey - Use the value of 'compKey' to create the value for 'key'
    
    compFactor - Let 'key' = 'compFactor' * 'compKey'.
  - guessKey
```
public Object guessKey()
```
  - guessKey
```
public Object guessKey(double valueGuess)
```
  - getProbability
```
public Double getProbability(Object key)
```
  - getProbabilityValue
```
public double getProbabilityValue(Object key)
```
  - test
```
public static void test()
```