HistogramSPDT (types 12.8.2 API)

Object
- HistogramSPDT

```
public class HistogramSPDT
extends Object
```
This class is used to encapsulate a Histogram to provide Histogram data. If the data fits in the cardinality set then it simply uses a map to generate the histogram values. Once the cardinality exceeds maxCardinality then the data is tracked using an algorithm based on Yael Ben-Haim and Elad Tom-Tov, "A streaming parallel decision tree algorithm", J. Machine Learning Research 11 (2010), pp. 849--872

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept(double value, long count)`	Add a new data point with an associated count to the histogram approximation.
`void`	`accept(String value, long count)`	Add a new String-valued data point with an associated count to the histogram approximation.
`ArrayList<HistogramSPDT.Bin>`	`getBins()`	Accessor for the ArrayList of all bins.
`double`	`getMaxValue()`	Retrieve the maximum value.
`double`	`getMinValue()`	Retrieve the minimum value.
`protected int`	`locateInsertion(double value)`
`HistogramSPDT`	`merge(HistogramSPDT other)`

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

- Method Detail
  - accept
```
public void accept(String value,
                   long count)
```
    Add a new String-valued data point with an associated count to the histogram approximation. The String will be converted to a double using the StringConverter passed to the Constructor.
    
    Parameters:
    
    value - The String data point to add to the histogram approximation.
    
    count - The count associated with this data point
  - accept
```
public void accept(double value,
                   long count)
```
    Add a new data point with an associated count to the histogram approximation.
    
    Parameters:
    
    value - The data point to add to the histogram approximation.
    
    count - The count associated with this data point
  - getBins
```
public ArrayList<HistogramSPDT.Bin> getBins()
```
    Accessor for the ArrayList of all bins.
    
    Returns:
    
    The bins that constitute the Histogram.
  - getMinValue
```
public double getMinValue()
```
    Retrieve the minimum value.
    
    Returns:
    
    The minimum value ever seen by this Histogram
  - getMaxValue
```
public double getMaxValue()
```
    Retrieve the maximum value.
    
    Returns:
    
    The maximum value ever seen by this Histogram
  - merge
```
public HistogramSPDT merge(HistogramSPDT other)
```
  - locateInsertion
```
protected int locateInsertion(double value)
```