Dataset

java.lang.Object
- keel.Algorithms.Hyperrectangles.EACH.Dataset

```
public class Dataset
extends java.lang.Object
```
Class to manage data sets

Since:

JDK1.2

Version:

1.0
, 1.1

Author:

Rosa Venzala, Written by Rosa Venzala (University of Granada) 02/06/2008, Modified by Xavi Solé (La Salle, Ramón Llull University - Barcelona) 16/12/2008

Constructor Summary

Constructors
Constructor and Description

Dataset()
Constructor, creates a new set of instances

Constructors
Constructor and Description
`Dataset()` Constructor, creates a new set of instances

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`void`	`computeMostComon()` Calculate the values most commons for each column or attribute
`java.lang.String`	`copyHeaderTest()` Returns a string with the header of the file
`int[][][]`	`createCount()` Creates a matrix training set, stored for each class, each attribute, and each value the number of examples of class C that have value V for the attribute A COUNT[C,V,A]
`java.lang.String`	`findNominalValue(int atr, double valor)` Returns the nominal value of the double value of the attribute
`int[]`	`getC()` Returns the values for the out-put(class)
`int`	`getC(int pos)` Returns the value of the output attribute (class) for the example with the given index.
`java.lang.String[]`	`getC2()` Returns the values for the out-put(class)
`InstanceSet`	`getInstanceSet()` Returns the instance set
`double[][]`	`getListValues()` Gets for each attribute the sorted list of its possible values
`int`	`getMax(double[] num, long seed)` Returns the index where is the maximum in an array of doubles
`double[]`	`getMaximum()` Returns an array with the maximum values of the in-put attributes
`double[]`	`getMinimum()` Returns an array with the minimum values of the in-put values
`java.lang.String[]`	`getNames()` Returns the name of the problem's variables
`int`	`getNClasses()` Returns the total number of classes
`int`	`getNData()` Return the number of examples
`int`	`getNInPuts()` Return the number of in-put variables
`int[]`	`getNumValues()` Returns for each attribute the number of different values
`int[]`	`getNumValues2()` Returns for each attribute the number of different values
`int`	`getNVariables()` Returns the number of variables
`int[][]`	`getOptimumClass(int[][][] Count, long seed)` Returns a vector with the optimum class for each pair attribute-value
`double[][]`	`getX()` Return the values of the in-put attributes
`double[]`	`getX(int pos)` Return the values of the in-put attributes for an instance
`java.lang.String[][]`	`getX2()` Return the values of the in-put attributes
`double[]`	`getXNor(int pos)` Return the normalized values of the in-put attributes for an instance
`java.lang.String[]`	`giveClasses()` Returns teh value of the classes
`boolean`	`hayAtributosContinuos()` Checks if in the data base there is a in-put type real or continous
`boolean`	`isMissing(int i, int j)` Checks if one attribute is lost or not
`int`	`mostCommon(int i)` Return the value most common of the attribute 'i'
`void`	`normalize()` Convert all the values of the set of values in the inetrval[0,1]
`void`	`readSet(java.lang.String nfejemplos, boolean train)` Reads the file of examples(Train&Test)
`boolean`	`thereInstancesOfClass(int whichClass)` Checks if in the instances set left instances of a determined class
`int[]`	`typesVariable()` Return the types of each in-put(NOMINAL[0] o NUMERIC[1])

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - Dataset
```
public Dataset()
```
    Constructor, creates a new set of instances
- Method Detail
  - getX
```
public double[][] getX()
```
    Return the values of the in-put attributes
    
    Returns:
    
    double[][] An array with the in-put attributes
  - getX2
```
public java.lang.String[][] getX2()
```
    Return the values of the in-put attributes
    
    Returns:
    
    double[][] An array with the in-put attributes
  - getX
```
public double[] getX(int pos)
```
    Return the values of the in-put attributes for an instance
    
    Parameters:
    
    pos - The position of the instance in the set of values
    
    Returns:
    
    double[] An array with the in-put attributes for the instance
  - getXNor
```
public double[] getXNor(int pos)
```
    Return the normalized values of the in-put attributes for an instance
    
    Parameters:
    
    pos - The position of the instance in the set of values
    
    Returns:
    
    double[] An array with the normalized in-put attributes for the instance
  - getInstanceSet
```
public InstanceSet getInstanceSet()
```
    Returns the instance set
    
    Returns:
    
    the instance set
  - findNominalValue
```
public java.lang.String findNominalValue(int atr,
                                         double valor)
```
    Returns the nominal value of the double value of the attribute
    
    Parameters:
    
    atr - attribute id.
    
    valor - attribute id.
    
    Returns:
    
    the nominal value of the double value of the attribute
  - thereInstancesOfClass
```
public boolean thereInstancesOfClass(int whichClass)
                              throws java.lang.ArrayIndexOutOfBoundsException
```
    Checks if in the instances set left instances of a determined class
    
    Parameters:
    
    whichClass - The class
    
    Returns:
    
    true if there're instances, false otherwise
    
    Throws:
    
    java.lang.ArrayIndexOutOfBoundsException
  - getListValues
```
public double[][] getListValues()
```
    Gets for each attribute the sorted list of its possible values
    
    Returns:
    
    list with each attribute the sorted list of its possible values
  - createCount
```
public int[][][] createCount()
```
    Creates a matrix training set, stored for each class, each attribute, and each value the number of examples of class C that have value V for the attribute A COUNT[C,V,A]
    
    Returns:
    
    int [][][] A matrix with the number of examples
  - getOptimumClass
```
public int[][] getOptimumClass(int[][][] Count,
                               long seed)
```
    Returns a vector with the optimum class for each pair attribute-value
    
    Parameters:
    
    Count - each pair attribute-value
    
    seed - seed.
    
    Returns:
    
    int [][] vector with the optimum classes
  - getMax
```
public int getMax(double[] num,
                  long seed)
```
    Returns the index where is the maximum in an array of doubles
    
    Parameters:
    
    num - array of doubles given.
    
    seed - seed
    
    Returns:
    
    int index where is the aximum value
  - getNumValues
```
public int[] getNumValues()
```
    Returns for each attribute the number of different values
    
    Returns:
    
    int [] an array with the number of different values
  - getNumValues2
```
public int[] getNumValues2()
```
    Returns for each attribute the number of different values
    
    Returns:
    
    int [] an array with the number of different values
  - getC
```
public int[] getC()
```
    Returns the values for the out-put(class)
    
    Returns:
    
    int[] An array with the values of the class
  - getC2
```
public java.lang.String[] getC2()
```
    Returns the values for the out-put(class)
    
    Returns:
    
    int[] An array with the values of the class
  - getC
```
public int getC(int pos)
```
    Returns the value of the output attribute (class) for the example with the given index.
    
    Parameters:
    
    pos - index/position of the asked example
    
    Returns:
    
    the value of the output attribute (class) for the example with the given index
  - getMaximum
```
public double[] getMaximum()
```
    Returns an array with the maximum values of the in-put attributes
    
    Returns:
    
    double[] idem
  - getMinimum
```
public double[] getMinimum()
```
    Returns an array with the minimum values of the in-put values
    
    Returns:
    
    double[] idem
  - getNData
```
public int getNData()
```
    Return the number of examples
    
    Returns:
    
    int the number of examples
  - getNVariables
```
public int getNVariables()
```
    Returns the number of variables
    
    Returns:
    
    int The number of variables(including in-put and out-put)
  - getNInPuts
```
public int getNInPuts()
```
    Return the number of in-put variables
    
    Returns:
    
    int Total of the in-put variables
  - getNClasses
```
public int getNClasses()
```
    Returns the total number of classes
    
    Returns:
    
    int the number of classes
  - isMissing
```
public boolean isMissing(int i,
                         int j)
```
    Checks if one attribute is lost or not
    
    Parameters:
    
    i - int Number of example
    
    j - int Number of attribue
    
    Returns:
    
    boolean True if lost
  - readSet
```
public void readSet(java.lang.String nfejemplos,
                    boolean train)
             throws java.io.IOException
```
    Reads the file of examples(Train&Test)
    
    Parameters:
    
    nfejemplos - String Nom of the examples file
    
    train - boolean True if Train set. False is test set.
    
    Throws:
    
    java.io.IOException - A possible I/O error
  - copyHeaderTest
```
public java.lang.String copyHeaderTest()
```
    Returns a string with the header of the file
    
    Returns:
    
    String The data of the header of the file
  - normalize
```
public void normalize()
```
    Convert all the values of the set of values in the inetrval[0,1]
  - typesVariable
```
public int[] typesVariable()
```
    Return the types of each in-put(NOMINAL[0] o NUMERIC[1])
    
    Returns:
    
    int[] A vector with (NOMINAL[0] o NUMERIC[1])
  - computeMostComon
```
public void computeMostComon()
```
    Calculate the values most commons for each column or attribute
  - mostCommon
```
public int mostCommon(int i)
```
    Return the value most common of the attribute 'i'
    
    Parameters:
    
    i - int Number of the attribute
    
    Returns:
    
    int Most common value for this variable
  - getNames
```
public java.lang.String[] getNames()
```
    Returns the name of the problem's variables
    
    Returns:
    
    String[] An array with the name of the problem's variables
  - giveClasses
```
public java.lang.String[] giveClasses()
```
    Returns teh value of the classes
    
    Returns:
    
    String[] An aray with the name of the out-puts(classes)
  - hayAtributosContinuos
```
public boolean hayAtributosContinuos()
```
    Checks if in the data base there is a in-put type real or continous
    
    Returns:
    
    boolean True if exists, False otherwise

Class Dataset

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

Dataset

Method Detail

getX

getX2

getX

getXNor

getInstanceSet

findNominalValue

thereInstancesOfClass

getListValues

createCount

getOptimumClass

getMax

getNumValues

getNumValues2

getC

getC2

getC

getMaximum

getMinimum

getNData

getNVariables

getNInPuts

getNClasses

isMissing

readSet

copyHeaderTest

normalize

typesVariable

computeMostComon

mostCommon

getNames

giveClasses

hayAtributosContinuos