keel.Algorithms.Subgroup_Discovery.SDIGA.Calculate

Class Utils

java.lang.Object

keel.Algorithms.Subgroup_Discovery.SDIGA.Calculate.Utils

public class Utils
extends java.lang.Object

Assorted methods to manage several topics

Since:

JDK1.5

Version:

1.0

Author:

Written by Pedro González (University of Jaen) 15/08/2004

Constructor Summary

Constructors

Constructor and Description
Utils()

Method Summary

Modifier and Type	Method and Description
static float	Assigned(float val, float tope) Rounds the generated value for the semantics when necesary
static boolean	BETTER(double X, double Y) Returns if the first double argument is better than the second
static boolean	BETTER(float X, float Y) Returns if the first float argument is better than the second
static boolean	BETTER(int X, int Y) Returns if the first integer argument is better than the second
static int	ExamplesClass(int num_class) Counts the number of examples of the DataSet belonging to the number of the class indicated
static int	getPosString(java.util.Vector vect_valores, java.lang.String value) Returns the position of the element at the vector, -1 if does not appear
static float	Maximum(float x, float y) Returns the maximum of two float values
static float	Minimum(float x, float y) Returns the minimum of two float values
static void	OrCrecIndex(float[] v, int left, int right, int[] index) C.A.R, Hoare Quick sort.
static void	OrDecIndex(float[] v, int left, int right, int[] index) C.A.R, Hoare Quick sort.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Utils

public Utils()

Method Detail

getPosString

public static int getPosString(java.util.Vector vect_valores,
                               java.lang.String value)

Returns the position of the element at the vector, -1 if does not appear

Parameters:

vect_valores - Vector with values

value - The value to search

Returns:

Position of the value in the the vect_valores

Minimum

public static float Minimum(float x,
                            float y)

Returns the minimum of two float values

Parameters:

x - Some float

y - Some float

Returns:

The float with the minimum value

Maximum

public static float Maximum(float x,
                            float y)

Returns the maximum of two float values

Parameters:

x - Some float

y - Some float

Returns:

The float with the maximum value

BETTER

public static boolean BETTER(float X,
                             float Y)

Returns if the first float argument is better than the second

Parameters:

X - Some float

Y - Some float

Returns:

True if X is better than Y and false in other way

BETTER

public static boolean BETTER(int X,
                             int Y)

Returns if the first integer argument is better than the second

Parameters:

X - Some integer

Y - Some integer

Returns:

True if X is better than Y and false in other way

BETTER

public static boolean BETTER(double X,
                             double Y)

Returns if the first double argument is better than the second

Parameters:

X - Some double

Y - Some double

Returns:

True if X is better than Y and false in other way

OrDecIndex

public static void OrDecIndex(float[] v,
                              int left,
                              int right,
                              int[] index)

C.A.R, Hoare Quick sort. Based on sort by interchange. Decreasing sort.

Parameters:

v - Vector to be sorted

left - Position to sort

right - Final position to sort

index - The indexes of the original vector

OrCrecIndex

public static void OrCrecIndex(float[] v,
                               int left,
                               int right,
                               int[] index)

C.A.R, Hoare Quick sort. Based on sort by interchange. Incresing sort.

Parameters:

v - Vector to be sorted

left - Initial position to sort

right - Final position to sort

index - The indexes of the original vector

Assigned

public static float Assigned(float val,
                             float tope)

Rounds the generated value for the semantics when necesary

Parameters:

val - The value to round

tope -

Returns:

0 if incorrect assignement, otherwise, val

ExamplesClass

public static int ExamplesClass(int num_class)

Counts the number of examples of the DataSet belonging to the number of the class indicated

Parameters:

num_class - The number of the objective class

Returns:

The number of examples of the class