bdm::EpdfDS Class Reference

Simulate data from a static pdf (epdf). More...

#include <datasources.h>

List of all members.

Public Member Functions
void	step ()
	Moves from to , i.e. perfroms the actions and reads response of the system.
void	getdata (vec &dt_out)
	Returns full vector of observed data=[output, input].
void	getdata (vec &dt_out, const ivec &ids)
	Returns data records at indeces.
const RV &	_drv ()
void	from_setting (const Setting &set)
void	validate ()
	This method TODO.
virtual int	max_length ()
	Returns maximum number of provided data, by default it is set to maximum allowed length, shorter DS should overload this method! See, MemDS.max_length().
virtual void	write (vec &ut)
	Accepts action variable and schedule it for application.
virtual void	write (vec &ut, const ivec &indeces)
	Accepts action variables at specific indeces.
virtual void	log_add (logger &L)
	Register DS for logging into logger L.
virtual void	logit (logger &L)
	Register DS for logging into logger L.
virtual const RV &	_drv () const
	access function
const RV &	_urv () const
	access function
const RV &	_yrv () const
	access function
virtual void	set_drv (const RV &yrv, const RV &urv)
	set random variables
virtual string	to_string ()
	This method returns a basic info about the current instance.
virtual void	to_setting (Setting &set) const
	This method save all the instance properties into the Setting structure.
Protected Attributes
shared_ptr< epdf >	iepdf
	internal pointer to epdf from which we samplecond
vec	dt
	internal storage of data sample
int	dtsize
	size of data returned by getdata()
int	utsize
	size of data
int	ytsize
	size of output
RV	Drv
	Description of data returned by getdata().
RV	Urv
	Description of data witten by by write().
RV	Yrv
	Description of output data.
int	L_dt
	Remember its own index in Logger L.
int	L_ut

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Detailed Description

Simulate data from a static pdf (epdf).

Trivial example of a data source, could be used for tests of some estimation algorithms. For example, simulating data from a mixture model and feeding them to mixture model estimators.

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Member Function Documentation

void bdm::EpdfDS::from_setting

(

const Setting &

set

)

[inline, virtual]

                class = "EpdfDS";
                epdf = {class="epdf_offspring", ...}// uncondtitional density to sample from

Reimplemented from bdm::root.

References bdm_assert, dt, bdm::DS::dtsize, iepdf, bdm::DS::set_drv(), bdm::DS::utsize, and validate().

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

• datasources.h