smile.nlp

Class NGram

java.lang.Object

smile.nlp.NGram

All Implemented Interfaces:

java.lang.Comparable<NGram>

public class NGram
extends java.lang.Object
implements java.lang.Comparable<NGram>

An n-gram is a contiguous sequence of n words from a given sequence of text. An n-gram of size 1 is referred to as a unigram; size 2 is a bigram; size 3 is a trigram.

Field Summary

Fields

Modifier and Type	Field and Description
int	freq Frequency of n-gram in the corpus.
java.lang.String[]	words Immutable word sequences.

Constructor Summary

Constructors

Constructor and Description
NGram(java.lang.String[] words) Constructor.
NGram(java.lang.String[] words, int freq) Constructor.

Method Summary

Modifier and Type	Method and Description
int	compareTo(NGram o)
boolean	equals(java.lang.Object obj)
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

words

public final java.lang.String[] words

Immutable word sequences.

freq

public int freq

Frequency of n-gram in the corpus.

Constructor Detail

NGram

public NGram(java.lang.String[] words)

Constructor.

Parameters:

words - the n-gram word sequence.

NGram

public NGram(java.lang.String[] words,
             int freq)

Constructor.

Parameters:

words - the n-gram word sequence.

freq - the frequency of n-gram in the corpus.

Method Detail

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

compareTo

public int compareTo(NGram o)

Specified by:

compareTo in interface java.lang.Comparable<NGram>