damina::Point Class Reference

Encapsulates a Point for feature vector representaion of data. More...

#include <Point.h>

Collaboration diagram for damina::Point:

[legend]List of all members.

Public Member Functions
virtual void	add (Feature *)
	Append a feature to the point.
virtual Feature *	first ()
	Returns the first feature of the point.
virtual Feature *	get (int)
	Returns the specified feature of the point.
virtual double	getLabel ()
	Returns the label currently assigned to the point.
virtual unsigned long int	getSize ()
	Returns the number of the elements in the point.
virtual Feature *	last ()
	Returns the last feature of the point.
virtual Feature *	next ()
	Increments the point iterator and return the corresponding feature.
	Point (double)
	Point ()
	Constructor.
virtual Feature *	previous ()
	Decrements the point iterator and return the corresponding feature.
virtual void	setLabel (double)
	Set the label (class) for the point.
virtual	~Point ()
	Destructor.
Private Attributes
vector< Feature * >::iterator	it
	An iterator over the point.
double	label
	Label indicates the class the point belong to.
vector< Feature * >	point
	The point representation.

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Detailed Description

Encapsulates a Point for feature vector representaion of data.

We use the Vector Document Model, in which each object is represented by a point in a vector space. So, a point is a features vector.

Author:

Vincenzo Russo - vincenzo.russo@neminis.org

Definition at line 21 of file Point.h.

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Constructor & Destructor Documentation

damina::Point::Point

(

)

Constructor.

Definition at line 9 of file Point.cpp.

                     {
        }

damina::Point::Point

(

double

)

damina::Point::~Point

(

)

[virtual]

Destructor.

Before destroy a point we have to destroy its features first.

Definition at line 17 of file Point.cpp.

References point.

                      {
                vector<Feature *>::iterator dataIterator;
                
                /* iterating over the features to destory them  */
                for (dataIterator == point.begin(); dataIterator < point.end(); dataIterator++) {
                        delete *dataIterator;
                }
        }

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Member Function Documentation

void damina::Point::add

(

Feature *

f

)

[virtual]

Append a feature to the point.

Parameters:

f

The feature to add

Definition at line 31 of file Point.cpp.

References point.

                                  {
                point.push_back(f);
        }

Feature * damina::Point::first

(

)

[virtual]

Returns the first feature of the point.

Returns:

The reference to the first feature of the point

Definition at line 60 of file Point.cpp.

References it, and point.

                              {
                it = point.begin();
                return *it;
        }

Feature * damina::Point::get

(

int

index

)

[virtual]

Returns the specified feature of the point.

Parameters:

index

The position occupied in the point of the feature to get

Returns:

The feature in the "index" position of the point

Definition at line 112 of file Point.cpp.

References point.

Referenced by damina::OneClassSVM::trainingSetToProblem().

                                     {
                return this->point[index];
        } 

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double damina::Point::getLabel

(

)

[virtual]

Returns the label currently assigned to the point.

Returns:

A double precision floating point value representing the label

Definition at line 50 of file Point.cpp.

References label.

Referenced by damina::OneClassSVM::trainingSetToProblem().

                               {
                return label;
        }

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unsigned long int damina::Point::getSize

(

)

[virtual]

Returns the number of the elements in the point.

Returns:

The number of features representing the point

Definition at line 101 of file Point.cpp.

References point.

Referenced by damina::OneClassSVM::trainingSetToProblem().

                                         {
                return this->point.size();
        }

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Feature * damina::Point::last

(

)

[virtual]

Returns the last feature of the point.

Returns:

The reference to the last feature of the point

Definition at line 70 of file Point.cpp.

References it, and point.

                             {
                it = point.end();
                return *it;
        }

Feature * damina::Point::next

(

)

[virtual]

Increments the point iterator and return the corresponding feature.

Returns:

The reference to the next feature of the point

Definition at line 80 of file Point.cpp.

References it.

                             {
                it++;
                return *it;
        }

Feature * damina::Point::previous

(

)

[virtual]

Decrements the point iterator and return the corresponding feature.

Returns:

The reference to the previous feature of the point

Definition at line 90 of file Point.cpp.

References it.

                                 {
                it--;
                return *it;
        }

void damina::Point::setLabel

(

double

l

)

[virtual]

Set the label (class) for the point.

Parameters:

l

The label to set

Definition at line 41 of file Point.cpp.

References label.

                                     {
                label = l;
        }

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Member Data Documentation

vector<Feature *>::iterator damina::Point::it [private]

An iterator over the point.

Definition at line 32 of file Point.h.

Referenced by first(), last(), next(), and previous().

double damina::Point::label [private]

Label indicates the class the point belong to.

Definition at line 37 of file Point.h.

Referenced by getLabel(), and setLabel().

vector<Feature *> damina::Point::point [private]

The point representation.

Definition at line 27 of file Point.h.

Referenced by add(), first(), get(), getSize(), last(), and ~Point().

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The documentation for this class was generated from the following files:

• Point.h
• Point.cpp

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