code: ///////////////////////////////////////////////////////////////////////////////
  // 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 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.                                       //
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  // 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         //
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  // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA //
  ///////////////////////////////////////////////////////////////////////////////
  
  package edu.cmu.tetrad.sem;
  
  
  /**
   * Created by IntelliJ IDEA.
   * User: mattheweasterday
   * Date: May 30, 2004
   * Time: 3:00:43 PM
   * <p>
   * This class contains all the constants used in the xml representation of a SEM
   * graph.
   */
  class SemXmlConstants {
      public static final String SEM = "sem";
  
      public static final String SEM_VARIABLES = "semVariables";
      public static final String CONTINUOUS_VARIABLE = "continuousVariable";
      public static final String NAME = "name";
  
      public static final String EDGES = "edges";
      public static final String EDGE = "edge";
      public static final String CAUSE_NODE = "causeNode";
      public static final String EFFECT_NODE = "effectNode";
      public static final String VALUE = "value";
      public static final String FIXED = "fixed";
  
      public static final String MARGINAL_ERROR_DISTRIBUTION = "marginalErrorDistribution";
      public static final String NORMAL = "normal";
      public static final String VARIABLE = "variable";
      public static final String MEAN = "mean";
      public static final String VARIANCE = "variance";
      public static final String IS_LATENT = "latent";
      public static final String X = "x";
      public static final String Y = "y";
  
      public static final String JOINT_ERROR_DISTRIBUTION = "jointErrorDistribution";
      public static final String NODE_1 = "node1";
      public static final String NODE_2 = "node2";
      public static final String COVARIANCE = "covariance";
  }
  
  
  
  