hep.aida
Interface IHistogram2D

All Superinterfaces:

IHistogram, Serializable

All Known Implementing Classes:

hep.aida.ref.AbstractHistogram2D, Histogram2D

public interface IHistogram2D

extends IHistogram

A Java interface corresponding to the AIDA 2D Histogram.

Note All methods that accept a bin number as an argument will also accept the constants OVERFLOW or UNDERFLOW as the argument, and as a result give the contents of the resulting OVERFLOW or UNDERFLOW bin.

Version:

1.0, 23/03/2000

See Also:

AIDA

binEntries

public int binEntries(int indexX,
                      int indexY)

The number of entries (ie the number of times fill was called for this bin).

Parameters:

indexX - the x bin number (0...Nx-1) or OVERFLOW or UNDERFLOW.

indexY - the y bin number (0...Ny-1) or OVERFLOW or UNDERFLOW.

binEntriesX

public int binEntriesX(int indexX)

Equivalent to projectionX().binEntries(indexX).

binEntriesY

public int binEntriesY(int indexY)

Equivalent to projectionY().binEntries(indexY).

binError

public double binError(int indexX,
                       int indexY)

The error on this bin.

Parameters:

indexX - the x bin number (0...Nx-1) or OVERFLOW or UNDERFLOW.

indexY - the y bin number (0...Ny-1) or OVERFLOW or UNDERFLOW.

binHeight

public double binHeight(int indexX,
                        int indexY)

Total height of the corresponding bin (ie the sum of the weights in this bin).

Parameters:

indexX - the x bin number (0...Nx-1) or OVERFLOW or UNDERFLOW.

indexY - the y bin number (0...Ny-1) or OVERFLOW or UNDERFLOW.

binHeightX

public double binHeightX(int indexX)

Equivalent to projectionX().binHeight(indexX).

binHeightY

public double binHeightY(int indexY)

Equivalent to projectionY().binHeight(indexY).

fill

public void fill(double x,
                 double y)

Fill the histogram with weight 1.

fill

public void fill(double x,
                 double y,
                 double weight)

Fill the histogram with specified weight.

meanX

public double meanX()

Returns the mean of the histogram, as calculated on filling-time projected on the X axis.

meanY

public double meanY()

Returns the mean of the histogram, as calculated on filling-time projected on the Y axis.

minMaxBins

public int[] minMaxBins()

Indexes of the in-range bins containing the smallest and largest binHeight(), respectively.

Returns:

{minBinX,minBinY, maxBinX,maxBinY}.

projectionX

public IHistogram1D projectionX()

Create a projection parallel to the X axis. Equivalent to sliceX(UNDERFLOW,OVERFLOW).

projectionY

public IHistogram1D projectionY()

Create a projection parallel to the Y axis. Equivalent to sliceY(UNDERFLOW,OVERFLOW).

rmsX

public double rmsX()

Returns the rms of the histogram as calculated on filling-time projected on the X axis.

rmsY

public double rmsY()

Returns the rms of the histogram as calculated on filling-time projected on the Y axis.

sliceX

public IHistogram1D sliceX(int indexY)

Slice parallel to the Y axis at bin indexY and one bin wide. Equivalent to sliceX(indexY,indexY).

sliceX

public IHistogram1D sliceX(int indexY1,
                           int indexY2)

Create a slice parallel to the axis X axis, between "indexY1" and "indexY2" (inclusive). The returned IHistogram1D represents an instantaneous snapshot of the histogram at the time the slice was created.

sliceY

public IHistogram1D sliceY(int indexX)

Slice parallel to the X axis at bin indexX and one bin wide. Equivalent to sliceY(indexX,indexX).

sliceY

public IHistogram1D sliceY(int indexX1,
                           int indexX2)

Create a slice parallel to the axis Y axis, between "indexX1" and "indexX2" (inclusive) The returned IHistogram1D represents an instantaneous snapshot of the histogram at the time the slice was created.

xAxis

public IAxis xAxis()

Return the X axis.

yAxis

public IAxis yAxis()

Return the Y axis.