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java.lang.Objectweka.estimators.DiscreteEstimator
public class DiscreteEstimator
Simple symbolic probability estimator based on symbol counts.
| Constructor Summary | |
|---|---|
DiscreteEstimator(int numSymbols,
boolean laplace)
Constructor |
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DiscreteEstimator(int nSymbols,
double fPrior)
Constructor |
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| Method Summary | |
|---|---|
void |
addValue(double data,
double weight)
Add a new data value to the current estimator. |
double |
getCount(double data)
Get the count for a value |
int |
getNumSymbols()
Gets the number of symbols this estimator operates with |
double |
getProbability(double data)
Get a probability estimate for a value |
double |
getSumOfCounts()
Get the sum of all the counts |
static void |
main(java.lang.String[] argv)
Main method for testing this class. |
java.lang.String |
toString()
Display a representation of this estimator |
| Methods inherited from class java.lang.Object |
|---|
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
| Constructor Detail |
|---|
public DiscreteEstimator(int numSymbols,
boolean laplace)
numSymbols - the number of possible symbols (remember to include 0)laplace - if true, counts will be initialised to 1
public DiscreteEstimator(int nSymbols,
double fPrior)
nSymbols - the number of possible symbols (remember to include 0)fPrior - value with which counts will be initialised| Method Detail |
|---|
public void addValue(double data,
double weight)
addValue in interface Estimatordata - the new data valueweight - the weight assigned to the data valuepublic double getProbability(double data)
getProbability in interface Estimatordata - the value to estimate the probability of
public int getNumSymbols()
public double getCount(double data)
data - the value to get the count of
public double getSumOfCounts()
public java.lang.String toString()
toString in class java.lang.Objectpublic static void main(java.lang.String[] argv)
argv - should contain a sequence of integers which
will be treated as symbolic.
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