de.lmu.ifi.dbs.elki.math

Class AggregatingHistogram<T,D>

java.lang.Object

de.lmu.ifi.dbs.elki.math.ReplacingHistogram<T>

de.lmu.ifi.dbs.elki.math.AggregatingHistogram<T,D>

Type Parameters:

T - Type of data in histogram

D - Type of input data

All Implemented Interfaces:

Iterable<Pair<Double,T>>

Direct Known Subclasses:

FlexiHistogram

public class AggregatingHistogram<T,D>
extends ReplacingHistogram<T>

Class for the typical case of an aggregating (e.g. counting, averaging) Histogram.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AggregatingHistogram.Adapter<T,D> Adapter class for an AggregatingHistogram

Nested classes/interfaces inherited from class de.lmu.ifi.dbs.elki.math.ReplacingHistogram

ReplacingHistogram.Iter, ReplacingHistogram.RIter

Field Summary

Fields

Modifier and Type	Field and Description
private AggregatingHistogram.Adapter<T,D>	putter The class we are using for putting data.

Fields inherited from class de.lmu.ifi.dbs.elki.math.ReplacingHistogram

base, binsize, data, max, offset, size

Constructor Summary

Constructors

Constructor and Description
AggregatingHistogram(int bins, double min, double max, AggregatingHistogram.Adapter<T,D> adapter) Constructor with Adapter.

Method Summary

Methods

Modifier and Type	Method and Description
void	aggregate(double coord, D value) Add a value to the histogram using the aggregation adapter.
static AggregatingHistogram<Pair<Double,Double>,Pair<Double,Double>>	DoubleSumDoubleSumHistogram(int bins, double min, double max) Histograms that work like two DoubleSumHistogram(int, double, double), component wise.
static AggregatingHistogram<Double,Double>	DoubleSumHistogram(int bins, double min, double max) Convenience constructor for Double-based Histograms.
static AggregatingHistogram<Integer,Integer>	IntSumHistogram(int bins, double min, double max) Convenience constructor for Integer-based Histograms.
static AggregatingHistogram<Pair<Integer,Integer>,Pair<Integer,Integer>>	IntSumIntSumHistogram(int bins, double min, double max) Histograms that work like two IntSumHistogram(int, double, double), component wise.
static AggregatingHistogram<Long,Long>	LongSumHistogram(int bins, double min, double max) Convenience constructor for Long-based Histograms.
static AggregatingHistogram<Pair<Long,Long>,Pair<Long,Long>>	LongSumLongSumHistogram(int bins, double min, double max) Histograms that work like two LongSumHistogram(int, double, double), component wise.
static AggregatingHistogram<MeanVariance,Double>	MeanVarianceHistogram(int bins, double min, double max) Convenience constructor for MeanVariance-based Histograms.

Methods inherited from class de.lmu.ifi.dbs.elki.math.ReplacingHistogram

DoubleDoubleHistogram, DoubleHistogram, get, getBinNr, getBinsize, getCoverMaximum, getCoverMinimum, getData, getNumBins, IntHistogram, IntIntHistogram, iterator, make, replace, reverseIterator

Methods inherited from class java.lang.Object

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

Field Detail

putter

private AggregatingHistogram.Adapter<T,D> putter

The class we are using for putting data.

Constructor Detail

AggregatingHistogram

public AggregatingHistogram(int bins,
                    double min,
                    double max,
                    AggregatingHistogram.Adapter<T,D> adapter)

Constructor with Adapter.

Parameters:

bins - Number of bins

min - Minimum value

max - Maximum value

adapter - Adapter

Method Detail

aggregate

public void aggregate(double coord,
             D value)

Add a value to the histogram using the aggregation adapter.

Parameters:

coord - Coordinate

value - New value

MeanVarianceHistogram

public static AggregatingHistogram<MeanVariance,Double> MeanVarianceHistogram(int bins,
                                                              double min,
                                                              double max)

Convenience constructor for MeanVariance-based Histograms. Uses a constructor to initialize bins with new MeanVariance objects

Parameters:

bins - Number of bins

min - Minimum coordinate

max - Maximum coordinate

Returns:

New histogram for MeanVariance.

IntSumHistogram

public static AggregatingHistogram<Integer,Integer> IntSumHistogram(int bins,
                                                    double min,
                                                    double max)

Convenience constructor for Integer-based Histograms. Uses a constructor to initialize bins with Integer(0). Aggregation is done by adding the values

Parameters:

bins - Number of bins

min - Minimum coordinate

max - Maximum coordinate

Returns:

New histogram for Integers.

LongSumHistogram

public static AggregatingHistogram<Long,Long> LongSumHistogram(int bins,
                                               double min,
                                               double max)

Convenience constructor for Long-based Histograms. Uses a constructor to initialize bins with Long(0L). Aggregation is done by adding the values

Parameters:

bins - Number of bins

min - Minimum coordinate

max - Maximum coordinate

Returns:

New histogram for Integers.

DoubleSumHistogram

public static AggregatingHistogram<Double,Double> DoubleSumHistogram(int bins,
                                                     double min,
                                                     double max)

Convenience constructor for Double-based Histograms. Uses a constructor to initialize bins with Double(0.0). Aggregation is done by adding the values

Parameters:

bins - Number of bins

min - Minimum coordinate

max - Maximum coordinate

Returns:

New histogram for Double.

IntSumIntSumHistogram

public static AggregatingHistogram<Pair<Integer,Integer>,Pair<Integer,Integer>> IntSumIntSumHistogram(int bins,
                                                                                      double min,
                                                                                      double max)

Histograms that work like two IntSumHistogram(int, double, double), component wise.

Parameters:

bins - Number of bins.

min - Minimum value

max - Maximum value

Returns:

Histogram object

LongSumLongSumHistogram

public static AggregatingHistogram<Pair<Long,Long>,Pair<Long,Long>> LongSumLongSumHistogram(int bins,
                                                                            double min,
                                                                            double max)

Histograms that work like two LongSumHistogram(int, double, double), component wise.

Parameters:

bins - Number of bins.

min - Minimum value

max - Maximum value

Returns:

Histogram object

DoubleSumDoubleSumHistogram

public static AggregatingHistogram<Pair<Double,Double>,Pair<Double,Double>> DoubleSumDoubleSumHistogram(int bins,
                                                                                        double min,
                                                                                        double max)

Histograms that work like two DoubleSumHistogram(int, double, double), component wise.

Parameters:

bins - Number of bins.

min - Minimum value

max - Maximum value

Returns:

Histogram object