dimension.h

人智算法基本程序

/* Dimension.H
 *
 * Each example that we want to place in the decision tree has a value for
 * each attribute. An attribute together with all the possible values for
 * the attribute we call a dimension. The dimension class stores an
 * attribute and its possible values, which is handy for various reasons.
 */

/*
 * Copyright 1994, Brown University, Providence, RI
 * See end of file for full copyright information
 */

#ifndef _DIMENSION_H_
#define _DIMENSION_H_

#include <iostream.h>
#include "String.H"

const int MAX_VALUES = 40;    // Same as MAX_CHILDREN for a node.
const int MAX_DIMENSIONS = 100;  // Cannot have more than this many dimensions

class Concept;
class Example;
class Boundary;
class Dimension {
friend istream& operator>>(istream &i, Dimension &d); // Read in this dimension
   char attribute[MAX_STRING];   // The names of the dimension's attributes

public:
   int num_values;               // The possible values for this dimension
   char values[MAX_VALUES][MAX_STRING];   // The names of all possible values
   char *get_attribute();        // Get the attribute name of this dimension
   int lookup(char temp[]);      // Give a value name, get the associated index
};

#endif

/*
 * Copyright 1994, Brown University, Providence, RI
 *
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 *
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