Package dev.nm.misc.datastructure

Class FlexibleTable

java.lang.Object

dev.nm.misc.datastructure.FlexibleTable

All Implemented Interfaces:

MatrixAccess, MatrixTable, Table

Direct Known Subclasses:

SimplexTable

public class FlexibleTable
extends Object
implements MatrixTable

This is a 2D table that can shrink or grow by row or by column. The labels to the rows and columns are for printing and debugging. The access to the table is by indices. All indices count from 1. Translation between labels and indices are provided.

Constructor Summary

Constructors

Constructor	Description
FlexibleTable(int nRows, int nCols)	Constructs a table using default labeling.
FlexibleTable(FlexibleTable that)	Copy constructor.
FlexibleTable(Object[] rowLabels, Object[] colLabels)	Constructs a table by row and column labels, initializing the content to 0.
FlexibleTable(Object[] rowLabels, Object[] colLabels, double[][] cells)	Constructs a flexible table that can shrink or grow.

Method Summary

Modifier and Type	Method	Description
void	addColAt(int i)	Adds a column at i.
void	addColAt(int i, Object label)	Adds a column at i.
void	addRowAt(int i)	Adds a row at i.
void	addRowAt(int i, Object label)	Adds a row at i.
void	deleteCol(int i)	Deletes column i.
void	deleteRow(int i)	Deletes row i.
boolean	equals(Object obj)
double	get(int i, int j)	Get the matrix entry at [i,j].
Object	getColLabel(int i)	Gets the label for column i.
Vector	getColumn(int col)
int	getIndexFromColLabel(Object label)	Translates a column label to a column index.
int	getIndexFromRowLabel(Object label)	Translates a row label to a row index.
Vector	getRow(int row)
Object	getRowLabel(int i)	Gets the label for row i.
int	hashCode()
int	nCols()	Gets the number of columns.
int	nRows()	Gets the number of rows.
void	renameCol(int i, Object label)	Renames column i.
void	renameRow(int i, Object label)	Renames row i.
void	set(int i, int j, double value)	Set the matrix entry at [i,j] to a value.
DenseMatrix	toMatrix()	Gets a copy of the flexible table in the form of a matrix.
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

FlexibleTable

public FlexibleTable(Object[] rowLabels,
                     Object[] colLabels,
                     double[][] cells)

Constructs a flexible table that can shrink or grow.

Parameters:

rowLabels - the row labels

colLabels - the column labels

cells - the table content

FlexibleTable

public FlexibleTable(Object[] rowLabels,
                     Object[] colLabels)

Constructs a table by row and column labels, initializing the content to 0.

Parameters:

rowLabels - the row labels

colLabels - the column labels

FlexibleTable

public FlexibleTable(int nRows,
                     int nCols)

Constructs a table using default labeling.

Parameters:

nRows - number of rows

nCols - number of columns

FlexibleTable

public FlexibleTable(FlexibleTable that)

Copy constructor.

Parameters:

that - another FlexibleTable

Method Detail

nRows

public int nRows()

Description copied from interface: Table

Gets the number of rows. Rows count from 1.

Specified by:

nRows in interface Table

Returns:

the number of rows

nCols

public int nCols()

Description copied from interface: Table

Gets the number of columns. Columns count from 1.

Specified by:

nCols in interface Table

Returns:

the number of columns

set

public void set(int i,
                int j,
                double value)

Description copied from interface: MatrixAccess

Set the matrix entry at [i,j] to a value. This is the only method that may change a matrix.

Specified by:

set in interface MatrixAccess

Parameters:

i - the row index

j - the column index

value - the value to set A[i,j] to

get

public double get(int i,
                  int j)

Description copied from interface: MatrixAccess

Get the matrix entry at [i,j].

Specified by:

get in interface MatrixAccess

Parameters:

i - the row index

j - the column index

Returns:

A[i,j]

getRow

public Vector getRow(int row)
              throws MatrixAccessException

Throws:

MatrixAccessException

getColumn

public Vector getColumn(int col)
                 throws MatrixAccessException

Throws:

MatrixAccessException

getIndexFromRowLabel

public int getIndexFromRowLabel(Object label)

Translates a row label to a row index. The index counts from 1.

Parameters:

label - a row label

Returns:

the row index

getIndexFromColLabel

public int getIndexFromColLabel(Object label)

Translates a column label to a column index. The index counts from 1.

Parameters:

label - a column label

Returns:

the column index

getRowLabel

public Object getRowLabel(int i)

Gets the label for row i.

Parameters:

i - a row index, counting from 1

Returns:

the label for row i

getColLabel

public Object getColLabel(int i)

Gets the label for column i.

Parameters:

i - a column index, counting from 1

Returns:

the label for column i

renameRow

public void renameRow(int i,
                      Object label)

Renames row i.

Parameters:

i - a row index, counting from 1

label - the new label

renameCol

public void renameCol(int i,
                      Object label)

Renames column i.

Parameters:

i - a column index, counting from 1

label - the new label

deleteRow

public void deleteRow(int i)

Deletes row i.

Parameters:

i - a row index, counting from 1

deleteCol

public void deleteCol(int i)

Deletes column i.

Parameters:

i - a column index, counting from 1

addRowAt

public void addRowAt(int i,
                     Object label)

Adds a row at i.

Parameters:

i - the row index, counting from 1

label - the row label

addRowAt

public void addRowAt(int i)

Adds a row at i.

Parameters:

i - the row index, counting from 1

addColAt

public void addColAt(int i,
                     Object label)

Adds a column at i.

Parameters:

i - the column index, counting from 1

label - the column label

addColAt

public void addColAt(int i)

Adds a column at i.

Parameters:

i - the column index, counting from 1

toMatrix

public DenseMatrix toMatrix()

Gets a copy of the flexible table in the form of a matrix.

Returns:

a matrix representation

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object