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java.lang.Objectbe.ac.ulg.montefiore.run.jahmm.OpdfDiscrete<E>
public class OpdfDiscrete<E extends java.lang.Enum<E>>
This class implements a distribution over a finite set of elements.
This set is implemented as an enum
.
Field Summary | |
---|---|
protected OpdfInteger |
distribution
|
protected java.util.EnumMap<E,ObservationInteger> |
toIntegerMap
|
protected java.util.List<E> |
values
|
Constructor Summary | |
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OpdfDiscrete(java.lang.Class<E> valuesClass)
Builds a new probability distribution which operates on a finite set of values. |
|
OpdfDiscrete(java.lang.Class<E> valuesClass,
double[] probabilities)
Builds a new probability distribution which operates on integer values. |
Method Summary | |
---|---|
OpdfDiscrete<E> |
clone()
|
void |
fit(java.util.Collection<? extends ObservationDiscrete<E>> co)
Fits this observation probability (distribution) function to a (non empty) set of observations. |
void |
fit(java.util.Collection<? extends ObservationDiscrete<E>> co,
double[] weights)
Fits this observation probability (distribution) function to a weighted (non empty) set of observations. |
void |
fit(ObservationDiscrete<E>... oa)
Fits this observation probability (distribution) function to a (non empty) set of observations. |
void |
fit(ObservationDiscrete<E>[] o,
double[] weights)
Fits this observation probability (distribution) function to a weighted (non empty) set of observations. |
ObservationDiscrete<E> |
generate()
Generates a (pseudo) random observation according to this distribution. |
double |
probability(ObservationDiscrete o)
Returns the probability (density) of an observation given a distribution. |
java.lang.String |
toString()
|
java.lang.String |
toString(java.text.NumberFormat numberFormat)
Returns a String describing this distribution. |
Methods inherited from class java.lang.Object |
---|
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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protected OpdfInteger distribution
protected final java.util.List<E extends java.lang.Enum<E>> values
protected final java.util.EnumMap<E extends java.lang.Enum<E>,ObservationInteger> toIntegerMap
Constructor Detail |
---|
public OpdfDiscrete(java.lang.Class<E> valuesClass)
valuesClass
- An Enum
class representing the set of
values.public OpdfDiscrete(java.lang.Class<E> valuesClass, double[] probabilities)
valuesClass
- An Enum
class representing the set of
values.probabilities
- Array holding one probability for each possible
value (i.e. such that probabilities[i]
is the
probability of the observation i
th element of
values
.Method Detail |
---|
public double probability(ObservationDiscrete o)
Opdf
probability
in interface Opdf<ObservationDiscrete<E extends java.lang.Enum<E>>>
o
- An observation.
o
takes continuous
values) of o
for this function.public ObservationDiscrete<E> generate()
Opdf
generate
in interface Opdf<ObservationDiscrete<E extends java.lang.Enum<E>>>
public void fit(ObservationDiscrete<E>... oa)
Opdf
fit
in interface Opdf<ObservationDiscrete<E extends java.lang.Enum<E>>>
oa
- An array of observations compatible with this function.public void fit(java.util.Collection<? extends ObservationDiscrete<E>> co)
Opdf
fit
in interface Opdf<ObservationDiscrete<E extends java.lang.Enum<E>>>
co
- A set of observations compatible with this function.public void fit(ObservationDiscrete<E>[] o, double[] weights)
Opdf
fit
in interface Opdf<ObservationDiscrete<E extends java.lang.Enum<E>>>
o
- An array of observations compatible with this factory.weights
- The weight associated to each observation (such that
weight.length == o.length
and the sum of
all the elements equals 1).public void fit(java.util.Collection<? extends ObservationDiscrete<E>> co, double[] weights)
Opdf
fit
in interface Opdf<ObservationDiscrete<E extends java.lang.Enum<E>>>
co
- A set of observations compatible with this factory.weights
- The weight associated to each observation (such that
weight.length == o.length
and the sum of
all the elements equals 1).public OpdfDiscrete<E> clone()
clone
in interface Opdf<ObservationDiscrete<E extends java.lang.Enum<E>>>
clone
in class java.lang.Object
public java.lang.String toString()
toString
in class java.lang.Object
public java.lang.String toString(java.text.NumberFormat numberFormat)
Opdf
String
describing this distribution.
toString
in interface Opdf<ObservationDiscrete<E extends java.lang.Enum<E>>>
numberFormat
- A formatter used to convert the numbers (e.g.
probabilities) to strings.
String
describing this distribution.
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