endrov.util.collection
Class EvListUtil

java.lang.Object
  endrov.util.collection.EvListUtil

public class EvListUtil
extends java.lang.Object

Utility functions for lists

Constructor Summary

EvListUtil()

Method Summary

static <B> EvDecimal	closestFrame(java.util.SortedMap<EvDecimal,B> imageLoader, EvDecimal frame) Find out the closest frame
static java.lang.Double	findPercentileDouble(double[] list, double perc) Find percentile.
static java.lang.Integer	findPercentileInt(int[] list, double perc) Find percentile.
static java.lang.Integer	findPercentileInt(int[] list, double perc, int listLength) Find percentile.
static java.lang.Double	findRankDouble(double[] list, int q) Find value of given rank q (=value at position q in sorted list).
static java.lang.Integer	findRankInt(int[] list, int q) Find value of given rank q (=value at position q in sorted list).
static int	getIndexOfMax(double[] t) Get index of element with largest value
static <E,F extends java.lang.Comparable<F>> E	getKeyOfMax(java.util.Map<E,F> t) Get key of element with largest value
static void	main(java.lang.String[] args)
static <A,B> java.util.List<Tuple<A,B>>	map2tuples(java.util.Map<A,B> map)
static double	modalValue(double[] set) Find the modal (most common value)
static <E,F> java.util.Collection<Tuple<E,F>>	productSet(java.util.Collection<E> a, java.util.Collection<F> b) Get the product set, given two sets
static double[]	toDoubleArray(java.util.Collection<java.lang.Double> set) Convert to scalar array
static int[]	toIntArray(java.util.Collection<java.lang.Integer> set) Convert to scalar array
static <A,B> java.util.SortedMap<A,B>	tuples2map(java.util.List<Tuple<A,B>> list)

Methods inherited from class java.lang.Object

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

Constructor Detail

EvListUtil

public EvListUtil()

Method Detail

map2tuples

public static <A,B> java.util.List<Tuple<A,B>> map2tuples(java.util.Map<A,B> map)

tuples2map

public static <A,B> java.util.SortedMap<A,B> tuples2map(java.util.List<Tuple<A,B>> list)

closestFrame

public static <B> EvDecimal closestFrame(java.util.SortedMap<EvDecimal,B> imageLoader,
                                         EvDecimal frame)

Find out the closest frame

findPercentileInt

public static java.lang.Integer findPercentileInt(int[] list,
                                                  double perc)

Find percentile. q<-[0,1]. O(n)

findPercentileInt

public static java.lang.Integer findPercentileInt(int[] list,
                                                  double perc,
                                                  int listLength)

Find percentile. q<-[0,1]. O(n)

findRankInt

public static java.lang.Integer findRankInt(int[] list,
                                            int q)

Find value of given rank q (=value at position q in sorted list). O(n)

toDoubleArray

public static double[] toDoubleArray(java.util.Collection<java.lang.Double> set)

Convert to scalar array

toIntArray

public static int[] toIntArray(java.util.Collection<java.lang.Integer> set)

Convert to scalar array

findPercentileDouble

public static java.lang.Double findPercentileDouble(double[] list,
                                                    double perc)

Find percentile. q<-[0,1]. O(n)

findRankDouble

public static java.lang.Double findRankDouble(double[] list,
                                              int q)

Find value of given rank q (=value at position q in sorted list). O(n)

modalValue

public static double modalValue(double[] set)

Find the modal (most common value)

getIndexOfMax

public static int getIndexOfMax(double[] t)

Get index of element with largest value

getKeyOfMax

public static <E,F extends java.lang.Comparable<F>> E getKeyOfMax(java.util.Map<E,F> t)

Get key of element with largest value

productSet

public static <E,F> java.util.Collection<Tuple<E,F>> productSet(java.util.Collection<E> a,
                                                                java.util.Collection<F> b)

Get the product set, given two sets

main

public static void main(java.lang.String[] args)