DataSet Class Reference

#include <dataset.h>

Public Member Functions
	DataSet ()
	DataSet (const Attributes &attributes) throw ( logic_error )
void	add (const DataSet &dataset) throw ( logic_error )
void	add (const Example &example) throw ( logic_error )
Attributes	getAttributes () const
Examples	getExamples () const
long	getSeed () const
bool	getHasNominalAttributes () const
bool	getHasNumericAttributes () const
void	load (string filename) throw ( logic_error )
void	parse (istream &in) throw ( logic_error )
void	setOptions (const vector< string > &options) throw ( logic_error )
void	setSeed (long seed)

Protected Attributes
string	name
Attributes	attributes
Examples	examples
long	seed = 2026875034

Friends
ostream &	operator<< (ostream &out, const DataSet &ds)

Detailed Description

Implements a class for a data set for machine-learning methods.

Author

Mark Maloof

Version

1.1, 2/7/15

Constructor & Destructor Documentation

DataSet::DataSet

(

)

Default constructor.

DataSet::DataSet	(	const Attributes &	attributes	)
throw	(	logic_error
	)

Explicit constructor.

Parameters

attributes

the attributes for this data set

Exceptions

logic_error

if the examples can not be added because of type or memory problems

Member Function Documentation

void DataSet::add	(	const DataSet &	dataset	)
throw	(	logic_error
	)

Adds the examples of the specified data set to this data set.

Parameters

dataset

the data set to be added

Exceptions

logic_error

if the examples can not be added because of type or memory problems

void DataSet::add	(	const Example &	example	)
throw	(	logic_error
	)

Adds the specified example to this data set.

Parameters

example

the example to be added

Exceptions

logic_error

if the examples can not be added because of type or memory problems

Attributes DataSet::getAttributes

(

)

const

Gets the attributes of this DataSet object.

Returns

the attributes of this data set

Examples DataSet::getExamples

(

)

const

Gets the examples of this data set.

Returns

the examples of this data set

bool DataSet::getHasNominalAttributes

(

)

const

Returns true if this data set has nominal attributes; returns false otherwise.

Returns

true if this data set has nominal attributes

bool DataSet::getHasNumericAttributes

(

)

const

Returns true if this data set has numeric attributes; returns false otherwise.

Returns

true if this data set has numeric attributes

long DataSet::getSeed

(

)

const

Gets the seed for this data set.

Returns

the seed for this data set

void DataSet::load	(	string	filename	)
throw	(	logic_error
	)

Loads a data set from the specified file.

Parameters

filename

the file from which to read

Exceptions

logic_error

if the file is not found or if a parse error occurs

void DataSet::parse	(	istream &	in	)
throw	(	logic_error
	)

Parses a data set from the specified input stream, which consists of parsing the data set's header, attributes, and examples.

Parameters

in	an input stream containing the data set's tokens

Exceptions

logic_error

if a parse error occurs

void DataSet::setOptions	(	const vector< string > &	options	)
throw	(	logic_error
	)

Sets the options for this data set. -s sets the random seed for this data set.

Parameters

options

the arguments

Exceptions

logic_error

if an option is illegal

void DataSet::setSeed

(

long

seed

)

Sets the random number seed for this data set. This also seeds the random number generator.

Parameters

seed

the seed

Friends And Related Function Documentation

ostream& operator<< ( ostream &  out, const DataSet &  ds  )

friend

Writes the specified data set to the output stream and returns it.

Parameters

out	the output stream for writing
ds	the data set for writing

Returns

the modified output stream

Member Data Documentation

Attributes DataSet::attributes

protected

the attributes of this data set

Examples DataSet::examples

protected

the examples of this data set

string DataSet::name

protected

the name of this data set

long DataSet::seed = 2026875034

protected

default random seed

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

• dataset.h
• dataset.cc