de.lmu.ifi.dbs.elki.utilities.datastructures.histogram

Class AbstractObjStaticHistogram<T>

java.lang.Object

de.lmu.ifi.dbs.elki.utilities.datastructures.histogram.AbstractStaticHistogram

de.lmu.ifi.dbs.elki.utilities.datastructures.histogram.AbstractObjStaticHistogram<T>

Type Parameters:

T - Data type

All Implemented Interfaces:

Histogram, ObjHistogram<T>

Direct Known Subclasses:

AbstractObjDynamicHistogram, DoubleArrayStaticHistogram, IntArrayStaticHistogram, LongArrayStaticHistogram, MeanVarianceStaticHistogram

public abstract class AbstractObjStaticHistogram<T>
extends AbstractStaticHistogram
implements ObjHistogram<T>

Histogram class storing double values. The histogram will start with "bin" bins, but it can grow dynamicall to the left and right.

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	AbstractObjStaticHistogram.Iter Iterator class.

Field Summary

Fields

Modifier and Type	Field and Description
(package private) Object[]	data Data store
(package private) Object[]	special Special value storage: infinity, NaN

Fields inherited from class de.lmu.ifi.dbs.elki.utilities.datastructures.histogram.AbstractStaticHistogram

base, binsize, max, offset, size

Fields inherited from interface de.lmu.ifi.dbs.elki.utilities.datastructures.histogram.Histogram

CACHE_SHIFT

Constructor Summary

Constructors

Constructor and Description
AbstractObjStaticHistogram(int bins, double min, double max) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
T	get(double coord) Access the value of a bin with new data.
protected T	getSpecial(int idx) Ensure that we have storage for special values (infinity, NaN)
AbstractObjStaticHistogram.Iter	iter() Get an iterator over all histogram bins.
protected abstract T	makeObject() Class to make a new object for the data store.

Methods inherited from class de.lmu.ifi.dbs.elki.utilities.datastructures.histogram.AbstractStaticHistogram

getBinNr, getBinsize, getCoverMaximum, getCoverMinimum, getNumBins, growSize

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.utilities.datastructures.histogram.ObjHistogram

putData

Methods inherited from interface de.lmu.ifi.dbs.elki.utilities.datastructures.histogram.Histogram

getBinsize, getCoverMaximum, getCoverMinimum, getNumBins

Field Detail

data

Object[] data

Data store

special

Object[] special

Special value storage: infinity, NaN

Constructor Detail

AbstractObjStaticHistogram

public AbstractObjStaticHistogram(int bins,
                          double min,
                          double max)

Constructor.

Parameters:

bins - Number of bins

min - Cover minimum

max - Cover maximum

Method Detail

get

public T get(double coord)

Access the value of a bin with new data.

Parameters:

coord - Coordinate

Returns:

bin contents

getSpecial

protected T getSpecial(int idx)

Ensure that we have storage for special values (infinity, NaN)

Parameters:

idx - Index to return.

makeObject

protected abstract T makeObject()

Class to make a new object for the data store.

Returns:

New instance.

iter

public AbstractObjStaticHistogram.Iter iter()

Description copied from class: AbstractStaticHistogram

Get an iterator over all histogram bins.

Specified by:

iter in interface Histogram

Specified by:

iter in interface ObjHistogram<T>

Specified by:

iter in class AbstractStaticHistogram

Returns:

Iterator