cern.colt.matrix.tfloat
Class FloatFactory3D

java.lang.Object
  cern.colt.PersistentObject
      cern.colt.matrix.tfloat.FloatFactory3D

All Implemented Interfaces:

Serializable, Cloneable

public class FloatFactory3D
extends PersistentObject

Factory for convenient construction of 3-d matrices holding float cells. Use idioms like FloatFactory3D.dense.make(4,4,4) to construct dense matrices, FloatFactory3D.sparse.make(4,4,4) to construct sparse matrices. If the factory is used frequently it might be useful to streamline the notation. For example by aliasing:

  FloatFactory3D F = FloatFactory3D.dense;
  F.make(4,4,4);
  F.descending(10,20,5);
  F.random(4,4,5);
  ...
 

Version:

1.0, 09/24/99

Author:

wolfgang.hoschek@cern.ch

See Also:

Serialized Form

Field Summary

static FloatFactory3D	dense A factory producing dense matrices.
static FloatFactory3D	sparse A factory producing sparse matrices.

Method Summary

FloatMatrix3D	ascending(int slices, int rows, int columns) Constructs a matrix with cells having ascending values.
FloatMatrix3D	descending(int slices, int rows, int columns) Constructs a matrix with cells having descending values.
FloatMatrix3D	make(float[][][] values) Constructs a matrix with the given cell values.
FloatMatrix3D	make(int slices, int rows, int columns) Constructs a matrix with the given shape, each cell initialized with zero.
FloatMatrix3D	make(int slices, int rows, int columns, float initialValue) Constructs a matrix with the given shape, each cell initialized with the given value.
FloatMatrix3D	random(int slices, int rows, int columns) Constructs a matrix with uniformly distributed values in (0,1) (exclusive).

Methods inherited from class cern.colt.PersistentObject

clone

Methods inherited from class java.lang.Object

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

Field Detail

dense

public static final FloatFactory3D dense

A factory producing dense matrices.

sparse

public static final FloatFactory3D sparse

A factory producing sparse matrices.

Method Detail

ascending

public FloatMatrix3D ascending(int slices,
                               int rows,
                               int columns)

Constructs a matrix with cells having ascending values. For debugging purposes.

descending

public FloatMatrix3D descending(int slices,
                                int rows,
                                int columns)

Constructs a matrix with cells having descending values. For debugging purposes.

make

public FloatMatrix3D make(float[][][] values)

Constructs a matrix with the given cell values. values is required to have the form values[slice][row][column] and have exactly the same number of slices, rows and columns as the receiver.

The values are copied. So subsequent changes in values are not reflected in the matrix, and vice-versa.

Parameters:

values - the values to be filled into the cells.

Returns:

this (for convenience only).

Throws:

IllegalArgumentException - if values.length != slices() || for any 0 <= slice < slices(): values[slice].length != rows() .

IllegalArgumentException - if for any 0 <= column < columns(): values[slice][row].length != columns() .

make

public FloatMatrix3D make(int slices,
                          int rows,
                          int columns)

Constructs a matrix with the given shape, each cell initialized with zero.

make

public FloatMatrix3D make(int slices,
                          int rows,
                          int columns,
                          float initialValue)

Constructs a matrix with the given shape, each cell initialized with the given value.

random

public FloatMatrix3D random(int slices,
                            int rows,
                            int columns)

Constructs a matrix with uniformly distributed values in (0,1) (exclusive).