A class to represent time series. More...

#include <TimeSeries.h>

Public Member Functions
void	add (te::dt::DateTime time, te::dt::AbstractData value)
	It adds an observation (time and attribute value) into the time series. More...

void	add (te::dt::DateTime *time, double value)
	It adds an observation (time and attribute value as double) into the time series. More...

void	add (te::dt::DateTime *time, int value)
	It adds an observation (time and attribute value as integer) into the time series. More...

void	add (te::dt::DateTime *time, const std::string &value)
	It adds an observation (time and attribute value as string) into the time series. More...

void	add (const TimeSeriesObservation &item)
	It adds an observation (time and attribute value) into the time series. More...

TimeSeries *	clone () const
	It returns a clone of this time series. More...

double	getDouble (te::dt::DateTime *t) const
	It returns the value as a double associated to a given date and time. More...

std::string	getId () const
	It returns the time series identifier. More...

int	getInt (te::dt::DateTime *t) const
	It returns the value as an integer associated to a given date and time. More...

AbstractTimeSeriesInterp *	getInterpolator () const
	It returns the interpolator associated to the time series. More...

te::gm::Geometry *	getLocation () const
	It returns the time series location. More...

const TimeSeriesObservationSet &	getObservations () const
	It returns the time series observations. More...

std::string	getString (te::dt::DateTime *t) const
	It returns the value as a string associated to a given date and time. More...

std::auto_ptr< te::dt::DateTimePeriod >	getTemporalExtent () const
	It returns the temporal extent or range of the time series. More...

std::auto_ptr< te::dt::AbstractData >	getValue (te::dt::DateTime *t) const
	It returns the value associated to a given date and time. More...

void	getValueExtent (double &minValue, double &maxValue)
	It returns the minimal and maximun values of the time series. More...

void	getValueExtent (int &minValue, int &maxValue)
	It returns the minimal and maximun values of the time series. More...

void	getValueExtent (std::string &minValue, std::string &maxValue)
	It returns the minimal and maximun values of the time series. More...

TimeSeries &	operator= (const TimeSeries &other)
	Copy assignment operator. More...

void	setId (const std::string &id)
	It sets the time series identifier. More...

void	setInterpolator (AbstractTimeSeriesInterp *interp)
	It sets the interpolator associated to the time series. More...

void	setLocation (te::gm::Geometry *geom)
	It sets the time series location. More...

std::size_t	size () const
	It returns the size of the time series observation set. More...

virtual	~TimeSeries ()
	It returns time series subsets that satisfy the given relations. More...

TimeSeries Constructors
	TimeSeries ()
	Empty constructor. More...

	TimeSeries (const std::string &id)
	Empty constructor. More...

	TimeSeries (AbstractTimeSeriesInterp *interp, const std::string &id)
	Empty constructor. More...

	TimeSeries (AbstractTimeSeriesInterp interp, const std::string &id, te::gm::Geometry geom)
	Empty constructor. More...

	TimeSeries (const TimeSeriesObservationSet &obs, AbstractTimeSeriesInterp interp, const std::string &id, te::gm::Geometry geom)
	Constructor. More...

	TimeSeries (const TimeSeriesPatch &patch, AbstractTimeSeriesInterp interp, const std::string &id, te::gm::Geometry geom)
	It constructs a time series from a patch. More...

	TimeSeries (const TimeSeries &ts)
	Copy constructor. More...

TimeSeries Iterator
An example of use: TimeSeriesIterator it = tj.begin(); while(it!=tj.end()) { DateTime* t = it.getTime(); double v = it.getDouble(); //or getValue() or getInt()... ++it; }
TimeSeriesIterator	begin () const
	It returns an iterator that points to the first observation of the time series. More...

TimeSeriesIterator	end () const
	It returns an iterator that points to the end of the time series. More...

TimeSeriesIterator	at (te::dt::DateTime *t) const
	It returns an iterator that points to an observation at a given time. More...

Time Series Patch
These methods return patches of a time series, as TimeSeriesPatch objects, that satisfy given restrictions. A TimeSeriesPatch object contains only pointers to the initial and final observations that delimit a patch of a TimeSeries. The end() method of a TimeSeriesPatch object returns an iterator that points to the position AFTER the last required observation. Example of use: TimeSeriesPatch patch = tj->getTimeSeries(period, "DURING"); TimeSeriesIterator it = patch.begin(); while(it!=patch.end()) { DateTime* t = it.getTime(); double v = it.getDouble(); //or getInt() or get Value() ++it; } Other option is to create a new TimeSeries from the returned patch: TimeSeriesPatch patch = tj->getTimeSeries(period, "DURING"); TimeSeries tsnew(patch);
TimeSeriesPatch	getPatch (const te::dt::DateTime &dt, te::dt::TemporalRelation r=te::dt::DURING) const
	It returns a time series subset that satisfies a given temporal relation. More...

void	getPatches (const double &v, te::dt::BasicRelation r, std::vector< TimeSeriesPatch > &result) const
	It returns time series subsets that satisfy a given relation. More...

void	getPatches (const double &v, te::dt::BasicRelation r, const te::dt::DateTime &dt, te::dt::TemporalRelation tr, std::vector< TimeSeriesPatch > &result) const
	It returns time series subsets that satisfy a given relation. More...

Private Member Functions
void	getResultOrderedByTime (const double &v, te::dt::BasicRelation r, std::map< te::dt::DateTime , te::dt::AbstractData , te::dt::CompareDateTime > &result) const
	It returns the result of a basic relation ordered by time. More...

Private Attributes
std::string	m_id
	The time series identification. More...

AbstractTimeSeriesInterp *	m_interpolator
	The interpolator used to estimate values at non-observed times. More...

std::auto_ptr< te::gm::Geometry >	m_location
	The time series location. More...

TimeSeriesObservationSet	m_observations
	The time series observations. More...

Detailed Description

A class to represent time series.

A time series represents a variation of a property over time, where this property is of a textual or numerical type (T -> A). It is composed of a set of observations and of an interpolator able to estimate values in non-observed times.

See also: ObservationSet AbstractInterpolator

Definition at line 66 of file TimeSeries.h.

Constructor & Destructor Documentation

te::st::TimeSeries::TimeSeries ( )

Empty constructor.

It constructs an empty time series. The user does not indicate the interpolator associated to it. Internally, it uses a default interpolator that is NearestValueAtTimeInterp.

te::st::TimeSeries::TimeSeries ( const std::string & id )

Empty constructor.

It constructs an empty time series. The user does not indicate the interpolator associated to it. Internally, it uses a default interpolator that is NearestValueAtTimeInterp.

Parameters

id	The time series id

te::st::TimeSeries::TimeSeries	(	AbstractTimeSeriesInterp *	interp,
		const std::string &	id
	)

Empty constructor.

It constructs an empty trajectory.

Parameters

id	The time series id.
interp	The interpolator associated to the time series.

te::st::TimeSeries::TimeSeries	(	AbstractTimeSeriesInterp *	interp,
		const std::string &	id,
		te::gm::Geometry *	geom
	)

Empty constructor.

It constructs an empty trajectory.

Parameters

interp	The interpolator associated to the time series.
id	The time series id.
geom	The time series location.

Note: It will take the ownership of the given geometry.

te::st::TimeSeries::TimeSeries	(	const TimeSeriesObservationSet &	obs,
		AbstractTimeSeriesInterp *	interp,
		const std::string &	id,
		te::gm::Geometry *	geom
	)

Constructor.

Parameters

obs	The time series observations.
interp	The interpolator associated to the time series.
id	The time series id.
geom	The time series location.

Note: It will take the ownership of the given geometry.

te::st::TimeSeries::TimeSeries	(	const TimeSeriesPatch &	patch,
		AbstractTimeSeriesInterp *	interp,
		const std::string &	id,
		te::gm::Geometry *	geom
	)

It constructs a time series from a patch.

Parameters

patch	The given patch.
interp	The interpolator
id	The time series id
geom	The time series location

te::st::TimeSeries::TimeSeries ( const TimeSeries & ts )

Copy constructor.

Note: The built time series will share the internal pointers of "ts".; The caller has to use the method "clone" to have a deep copy.

virtual te::st::TimeSeries::~TimeSeries ( )

virtual

It returns time series subsets that satisfy the given relations.

The possible basic relations are: LESS (1); MORE (2); EQUAL (4); LESS | EQUAL (5); MORE | EQUAL (6).

The possible temporal relations are: AFTER (2); AFTER | EQUALS (10); 3. BEFORE (1); 4. BEFORE | EQUALS (9); DURING (4); EQUALS (8) .

Parameters

v1	A given first value.
r1	A given relation associated to the first value.
v2	A given second value.
r2	A given relation associated to the second value.
dt	A given date and time.
tr	A given temporal relation.
result	The returned patches.

Note: When the temporal relation is DURING, dt must be a time period.

Virtual destructor.

Member Function Documentation

void te::st::TimeSeries::add	(	te::dt::DateTime *	time,
		te::dt::AbstractData *	value
	)

It adds an observation (time and attribute value) into the time series.

Parameters

time	A pointer to the time.
data	A pointer to the attribute value.

Note: The caller will take the ownership of the returned pointer.

void te::st::TimeSeries::add	(	te::dt::DateTime *	time,
		double	value
	)

It adds an observation (time and attribute value as double) into the time series.

Parameters

time	A pointer to the time.
data	A pointer to the attribute value as a double.

Note: The caller will take the ownership of the given pointer.

void te::st::TimeSeries::add	(	te::dt::DateTime *	time,
		int	value
	)

It adds an observation (time and attribute value as integer) into the time series.

Parameters

time	A pointer to the time.
data	A pointer to the attribute value as a integer.

Note: The caller will take the ownership of the given pointer.

void te::st::TimeSeries::add	(	te::dt::DateTime *	time,
		const std::string &	value
	)

It adds an observation (time and attribute value as string) into the time series.

Parameters

time	A pointer to the time.
data	A pointer to the attribute value as a string.

Note: The caller will take the ownership of the given pointer.

void te::st::TimeSeries::add ( const TimeSeriesObservation & item )

It adds an observation (time and attribute value) into the time series.

Parameters

item	A time series item.

TimeSeriesIterator te::st::TimeSeries::at ( te::dt::DateTime * t ) const

It returns an iterator that points to an observation at a given time.

If there is no observation at this given time, the returned iterator points to the end of the trajectory.

Returns: The time series iterator.

Note: This does not take the ownership of the given pointer.

TimeSeriesIterator te::st::TimeSeries::begin ( ) const

It returns an iterator that points to the first observation of the time series.

Returns: The time series iterator.

TimeSeries* te::st::TimeSeries::clone ( ) const

It returns a clone of this time series.

Returns: A new time series.

Note: The caller will take the ownership of the returned pointer.

TimeSeriesIterator te::st::TimeSeries::end ( ) const

It returns an iterator that points to the end of the time series.

Returns: The time series iterator.

double te::st::TimeSeries::getDouble ( te::dt::DateTime * t ) const

It returns the value as a double associated to a given date and time.

If there is no value associated to the given date and time, it will use internally its interpolation function.

Parameters

t	A date and time.

Returns: The value associated to the given date and time.

std::string te::st::TimeSeries::getId ( ) const

It returns the time series identifier.

Returns: The time series identifier.

int te::st::TimeSeries::getInt ( te::dt::DateTime * t ) const

It returns the value as an integer associated to a given date and time.

If there is no value associated to the given date and time, it will use internally its interpolation function.

Parameters

t	A date and time.

Returns: The value associated to the given date and time.

AbstractTimeSeriesInterp* te::st::TimeSeries::getInterpolator ( ) const

It returns the interpolator associated to the time series.

Returns: A pointer the interpolator associated to the time series.

Note: The caller will NOT take the ownership of the returned pointer.; The AbstractTimeSeriesInterp points to a singleton.

te::gm::Geometry* te::st::TimeSeries::getLocation ( ) const

It returns the time series location.

Returns: A pointer to the time series location.

Note: The caller will NOT take the ownership of the returned pointer.

const TimeSeriesObservationSet& te::st::TimeSeries::getObservations ( ) const

It returns the time series observations.

Returns: A reference to the time series observations.

TimeSeriesPatch te::st::TimeSeries::getPatch	(	const te::dt::DateTime &	dt,
		te::dt::TemporalRelation	r = `te::dt::DURING`
	)		const

It returns a time series subset that satisfies a given temporal relation.

The possible temporal relations are: AFTER (2); AFTER | EQUALS (10); 3. BEFORE (1); 4. BEFORE | EQUALS (9); DURING (4); EQUALS (8)

Parameters

dt	A given date and time.
r	A given temporal relation.

Returns: A patch of the time series.

Note: When the temporal relation is DURING, dt must be a time period.

void te::st::TimeSeries::getPatches	(	const double &	v,
		te::dt::BasicRelation	r,
		std::vector< TimeSeriesPatch > &	result
	)		const

It returns time series subsets that satisfy a given relation.

The possible basic relation is: LESS (1); MORE (2); EQUAL (4); LESS | EQUAL (5); MORE | EQUAL (6).

Parameters

v	A given value.
r	A given basic relation.
result	The returned patches.

void te::st::TimeSeries::getPatches	(	const double &	v,
		te::dt::BasicRelation	r,
		const te::dt::DateTime &	dt,
		te::dt::TemporalRelation	tr,
		std::vector< TimeSeriesPatch > &	result
	)		const

It returns time series subsets that satisfy a given relation.

The possible basic relation is: LESS (1); MORE (2); EQUAL (4); LESS | EQUAL (5); MORE | EQUAL (6).

Parameters

v1	A given first value.
r1	A given relation associated to the first value.
v2	A given second value.
r2	A given relation associated to the second value.
result	The returned patches.

It returns time series subsets that satisfy a the given relations.

The possible basic relations are: LESS (1); MORE (2); EQUAL (4); LESS | EQUAL (5); MORE | EQUAL (6).

The possible temporal relations are: AFTER (2); AFTER | EQUALS (10); 3. BEFORE (1); 4. BEFORE | EQUALS (9); DURING (4); EQUALS (8) .

Parameters

v	A given value.
r	A basic relation.
dt	A given date and time.
tr	A given temporal relation.
result	The returned patches.

Note: When the temporal relation is DURING, dt must be a time period.

void te::st::TimeSeries::getResultOrderedByTime	(	const double &	v,
		te::dt::BasicRelation	r,
		std::map< te::dt::DateTime , te::dt::AbstractData , te::dt::CompareDateTime > &	result
	)		const

private

It returns the result of a basic relation ordered by time.

std::string te::st::TimeSeries::getString ( te::dt::DateTime * t ) const

It returns the value as a string associated to a given date and time.

If there is no value associated to the given date and time, it will use internally its interpolation function.

Parameters

t	A date and time.

Returns: The value associated to the given date and time.

std::auto_ptr<te::dt::DateTimePeriod> te::st::TimeSeries::getTemporalExtent ( ) const

It returns the temporal extent or range of the time series.

Returns: The temporal extent or range of the time series.

Note: The caller will take the ownership of the output pointer.

std::auto_ptr<te::dt::AbstractData> te::st::TimeSeries::getValue ( te::dt::DateTime * t ) const

It returns the value associated to a given date and time.

If there is no value associated to the given date and time, it will use internally its interpolation function.

Parameters

t	A date and time.

Returns: A pointer to the value associated to the given date and time.

Note: The caller will take the ownership of the returned pointer.

void te::st::TimeSeries::getValueExtent	(	double &	minValue,
		double &	maxValue
	)

It returns the minimal and maximun values of the time series.

Parameters

minValue	The minumun value of the time series.
maxValue	The maximun value of the time series.

void te::st::TimeSeries::getValueExtent	(	int &	minValue,
		int &	maxValue
	)

It returns the minimal and maximun values of the time series.

Parameters

minValue	The minumun value of the time series.
maxValue	The maximun value of the time series.

void te::st::TimeSeries::getValueExtent	(	std::string &	minValue,
		std::string &	maxValue
	)

It returns the minimal and maximun values of the time series.

Parameters

minValue	The minumun value of the time series.
maxValue	The maximun value of the time series.

TimeSeries& te::st::TimeSeries::operator= ( const TimeSeries & other )

Copy assignment operator.

Note: They will share the internal pointers.; The caller has to use the method "clone" to have a deep copy.

void te::st::TimeSeries::setId ( const std::string & id )

It sets the time series identifier.

Parameters

id	The time series identifier.

void te::st::TimeSeries::setInterpolator ( AbstractTimeSeriesInterp * interp )

It sets the interpolator associated to the time series.

Parameters

interp A interpolator which is able to estimate values at non-observed times.

Note: It will NOT take the ownership of the input pointer.; The AbstractTimeSeriesInterp points to a singleton.

void te::st::TimeSeries::setLocation ( te::gm::Geometry * geom )

It sets the time series location.

Parameters

geom	The time series location.

Note: It will take the ownership of the given pointer.

std::size_t te::st::TimeSeries::size ( ) const

It returns the size of the time series observation set.

Returns: The observation set size of the time series.

Member Data Documentation

std::string te::st::TimeSeries::m_id

private

The time series identification.

Definition at line 534 of file TimeSeries.h.

AbstractTimeSeriesInterp* te::st::TimeSeries::m_interpolator

private

The interpolator used to estimate values at non-observed times.

Definition at line 532 of file TimeSeries.h.

std::auto_ptr<te::gm::Geometry> te::st::TimeSeries::m_location

private

The time series location.

Definition at line 533 of file TimeSeries.h.

TimeSeriesObservationSet te::st::TimeSeries::m_observations

private

The time series observations.

Definition at line 531 of file TimeSeries.h.

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

/home/castejon/castejon_files/develop/terralib5/git_master/src/terralib/st/core/timeseries/TimeSeries.h

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation