LogBinomialCoefficient (VirtualDataSet API)

java.lang.Object
- org.apache.commons.numbers.combinatorics.LogBinomialCoefficient

```
public class LogBinomialCoefficient
extends java.lang.Object
```
Natural logarithm of the binomial coefficient. It is "n choose k", the number of k-element subsets that can be selected from an n-element set.

- Constructor Summary
  
  Constructors
  Constructor Description
  
  LogBinomialCoefficient()
- Method Summary
  
  Modifier and Type Method Description
  
  static double value(int n, int k)
  Computes the logarithm of the binomial coefficient.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - LogBinomialCoefficient
```
public LogBinomialCoefficient()
```
- Method Detail
  - value
```
public static double value(int n,
                           int k)
```
    Computes the logarithm of the binomial coefficient. The largest value of n for which all coefficients can fit into a long is 66.
    
    Parameters:
    
    n - Size of the set.
    
    k - Size of the subsets to be counted.
    
    Returns:
    
    log(n choose k).
    
    Throws:
    
    java.lang.IllegalArgumentException - if n < 0.
    
    java.lang.IllegalArgumentException - if k > n.
    
    java.lang.IllegalArgumentException - if the result is too large to be represented by a long.