hep.aida
Interface IHistogram

All Superinterfaces:

Serializable

All Known Subinterfaces:

IHistogram1D, IHistogram2D, IHistogram3D

All Known Implementing Classes:

hep.aida.ref.AbstractHistogram1D, hep.aida.ref.AbstractHistogram2D, hep.aida.ref.AbstractHistogram3D, hep.aida.ref.Histogram, Histogram1D, Histogram2D, Histogram3D

public interface IHistogram

extends Serializable

A common base interface for IHistogram1D, IHistogram2D and IHistogram3D.

Version:

1.0, 23/03/2000

Field Summary

static int	OVERFLOW Constant specifying the overflow bin (can be passed to any method expecting a bin number).
static long	serialVersionUID
static int	UNDERFLOW Constant specifying the underflow bin (can be passed to any method expecting a bin number).

Method Summary

int	allEntries() Number of all entries in all (both in-range and under/overflow) bins in the histogram.
int	dimensions() Returns 1 for one-dimensional histograms, 2 for two-dimensional histograms, and so on.
int	entries() Number of in-range entries in the histogram.
double	equivalentBinEntries() Number of equivalent entries.
int	extraEntries() Number of under and overflow entries in the histogram.
void	reset() Reset contents; as if just constructed.
double	sumAllBinHeights() Sum of all (both in-range and under/overflow) bin heights in the histogram.
double	sumBinHeights() Sum of in-range bin heights in the histogram.
double	sumExtraBinHeights() Sum of under/overflow bin heights in the histogram.
String	title() Title of the histogram (will be set only in the constructor).

Field Detail

OVERFLOW

public static final int OVERFLOW

Constant specifying the overflow bin (can be passed to any method expecting a bin number).

See Also:

Constant Field Values

UNDERFLOW

public static final int UNDERFLOW

Constant specifying the underflow bin (can be passed to any method expecting a bin number).

See Also:

Constant Field Values

serialVersionUID

public static final long serialVersionUID

See Also:

Constant Field Values

Method Detail

allEntries

public int allEntries()

Number of all entries in all (both in-range and under/overflow) bins in the histogram.

dimensions

public int dimensions()

Returns 1 for one-dimensional histograms, 2 for two-dimensional histograms, and so on.

entries

public int entries()

Number of in-range entries in the histogram.

equivalentBinEntries

public double equivalentBinEntries()

Number of equivalent entries.

Returns:

SUM[ weight ] ^ 2 / SUM[ weight^2 ].

extraEntries

public int extraEntries()

Number of under and overflow entries in the histogram.

reset

public void reset()

Reset contents; as if just constructed.

sumAllBinHeights

public double sumAllBinHeights()

Sum of all (both in-range and under/overflow) bin heights in the histogram.

sumBinHeights

public double sumBinHeights()

Sum of in-range bin heights in the histogram.

sumExtraBinHeights

public double sumExtraBinHeights()

Sum of under/overflow bin heights in the histogram.

title

public String title()

Title of the histogram (will be set only in the constructor).