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 Details

    • 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 Details

    • 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