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.

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