Package org.apache.sysds.utils.stats

Class NGramBuilder<T,U>

java.lang.Object

org.apache.sysds.utils.stats.NGramBuilder<T,U>

public class NGramBuilder<T,U>
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	NGramBuilder.NGramEntry<T,U>

Constructor Summary

Constructors

Constructor	Description
NGramBuilder(Class<T> clazz, Class<U> clazz2, int size, Function<T,String> idGenerator, BiFunction<U,U,U> statsMerger)

Method Summary

Modifier and Type	Method	Description
void	append(T element, U stat)
int	getSize()
List<NGramBuilder.NGramEntry<T,U>>	getTopK(int k)
List<NGramBuilder.NGramEntry<T,U>>	getTopK(int k, Comparator<NGramBuilder.NGramEntry<T,U>> comparator, boolean reversed)
void	merge(NGramBuilder<T,U> builder)
static <T,U> String	toCSV(String[] columnNames, List<NGramBuilder.NGramEntry<T,U>> entries, Function<NGramBuilder.NGramEntry<T,U>,String> statsMapper)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

NGramBuilder

public NGramBuilder(Class<T> clazz,
                    Class<U> clazz2,
                    int size,
                    Function<T,String> idGenerator,
                    BiFunction<U,U,U> statsMerger)

Method Detail

toCSV

public static <T,U> String toCSV(String[] columnNames,
                                       List<NGramBuilder.NGramEntry<T,U>> entries,
                                       Function<NGramBuilder.NGramEntry<T,U>,String> statsMapper)

getSize

public int getSize()

merge

public void merge(NGramBuilder<T,U> builder)

append

public void append(T element,
                   U stat)

getTopK

public List<NGramBuilder.NGramEntry<T,U>> getTopK(int k)

getTopK

public List<NGramBuilder.NGramEntry<T,U>> getTopK(int k,
                                                        Comparator<NGramBuilder.NGramEntry<T,U>> comparator,
                                                        boolean reversed)