Package edu.cmu.tetrad.data

Interface CellTable

All Known Implementing Classes:

CellTableAdTree, CellTableCountSample

public interface CellTable

Represents a cell table that stores the values of the cells in a table of arbitrary dimension, for use, e.g., in the context of a contingency table--e.g. for chi-square or g-square tests.

Author:

josephramsey

Method Summary

Modifier and Type	Method	Description
int	calcMargin(int[] coords)	Calculates the marginal sum for the cell table based on the given coordinates.
int	calcMargin(int[] coords, int[] marginVars)	Calculates the marginal sum for the cell table based on the given coordinates and margin variables.
int	getDimension(int varIndex)	Returns the dimension of the specified variable in the cell table.
int	getValue(int[] coords)	Returns the value of the cell specified by the given coordinates.

Method Details

getDimension

int getDimension(int varIndex)

Returns the dimension of the specified variable in the cell table.

Parameters:

varIndex - the index of the variable.

Returns:

the dimension of the variable.

calcMargin

int calcMargin(int[] coords)

Calculates the marginal sum for the cell table based on the given coordinates.

Parameters:

coords - an array of coordinates where -1 indicates the variables over which marginal sums should be taken.

Returns:

the marginal sum specified.

calcMargin

int calcMargin(int[] coords,
 int[] marginVars)

Calculates the marginal sum for the cell table based on the given coordinates and margin variables.

Parameters:

coords - the array of coordinates where -1 indicates the variables over which marginal sums should be taken.

marginVars - the array of indices of the margin variables.

Returns:

the marginal sum specified.

getValue

int getValue(int[] coords)

Returns the value of the cell specified by the given coordinates.

Parameters:

coords - the coordinates of the cell.

Returns:

the value of the cell.