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///////////////////////////////////////////////////////////////////////////////
// For information as to what this class does, see the Javadoc, below. //
// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, //
// 2007, 2008, 2009, 2010, 2014, 2015, 2022 by Peter Spirtes, Richard //
// Scheines, Joseph Ramsey, and Clark Glymour. //
// //
// This program is free software; you can redistribute it and/or modify //
// it under the terms of the GNU General Public License as published by //
// the Free Software Foundation; either version 2 of the License, or //
// (at your option) any later version. //
// //
// This program is distributed in the hope that it will be useful, //
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
// GNU General Public License for more details. //
// //
// You should have received a copy of the GNU General Public License //
// along with this program; if not, write to the Free Software //
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA //
///////////////////////////////////////////////////////////////////////////////
package edu.cmu.tetrad.data;
import edu.cmu.tetrad.util.TetradSerializable;
/**
* Stores a 2D array of data. Different implementations may store data in different ways, allowing for space or time
* efficiency.
*
* @author josephramsey
*/
public interface DataBox extends TetradSerializable {
long serialVersionUID = 23L;
/**
* @return the (fixed) number of rows of the dataset.
*/
int numRows();
/**
* @return the (fixed) number of columns of the dataset.
*/
int numCols();
/**
* Sets the value at the given row and column to the given Number. This number may be interpreted differently
* depending on how values are stored. A value of null is interpreted as a missing value.
*
* @throws IllegalArgumentException if the given value cannot be stored (because it's out of range or cannot be
* converted or whatever).
*/
void set(int row, int col, Number value) throws IllegalArgumentException;
/**
* @return the value at the given row and column as a Number. If the value is missing, null is uniformly returned.
*/
Number get(int row, int col);
/**
* @return a copy of this data box.
*/
DataBox copy();
/**
* @return this data box, restricted to the given rows and columns.
*/
DataBox viewSelection(int[] rows, int[] cols);
DataBox like();
}