bdm::RV Class Reference

Class representing variables, most often random variables. More...

#include <bdmbase.h>

List of all members.

Public Member Functions
void	from_setting (const Setting &set)
	UI for class RV (description of data vectors).
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.
virtual void	validate ()
	This method TODO.
Constructors
	RV (const Array< std::string > &in_names, const ivec &in_sizes, const ivec &in_times)
	Full constructor.
	RV (const Array< std::string > &in_names, const ivec &in_sizes)
	Constructor with times=0.
	RV (const Array< std::string > &in_names)
	Constructor with sizes=1, times=0.
	RV ()
	Constructor of empty RV.
	RV (string name, int sz, int tm=0)
	Constructor of a single RV with given id.
Algebra on Random Variables
ivec	findself (const RV &rv2) const
	Find indices of self in another rv,.
bool	equal (const RV &rv2) const
	Compare if rv2 is identical to this RV.
bool	add (const RV &rv2)
	Add (concat) another variable to the current one,.
RV	subt (const RV &rv2) const
	Subtract another variable from the current one.
RV	subselect (const ivec &ind) const
	Select only variables at indices ind.
RV	operator() (const ivec &ind) const
	Select only variables at indices ind.
RV	operator() (int di1, int di2) const
	Select from data vector starting at di1 to di2.
void	t (int delta)
	Shift time by delta.
Relation to vectors
str	tostr () const
	generate str from rv, by expanding sizes TODO to_string..
ivec	dataind (const RV &crv) const
void	dataind (const RV &rv2, ivec &selfi, ivec &rv2i) const
int	mint () const
	Minimum time-offset.
Static Public Member Functions
static void	clear_all ()
	Invalidate all named RVs. Use before initializing any RV instances, with care...
Protected Attributes
int	dsize
	size of the data vector
int	len
	number of individual rvs
ivec	ids
	Vector of unique IDs.
ivec	times
	Vector of shifts from current time.
Access functions
int	_dsize () const
int	countsize () const
	Recount size of the corresponding data vector.
ivec	cumsizes () const
int	length () const
int	id (int at) const
int	size (int at) const
int	time (int at) const
std::string	name (int at) const
void	set_time (int at, int time0)
std::ostream &	operator<< (std::ostream &os, const RV &rv)
	State output, e.g. for debugging.

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Detailed Description

Class representing variables, most often random variables.

The purpose of this class is to decribe a vector of data. Such description is used for connecting various vectors between each other, see class datalink.

The class is implemented using global variables to assure uniqueness of description:

In is a vector

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Member Function Documentation

bool bdm::RV::add

(

const RV &

rv2

)

Add (concat) another variable to the current one,.

Returns:

true if all rv2 were added, false if rv2 is in conflict

References countsize(), dsize, findself(), ids, len, and times.

Referenced by bdm::compositepdf::getrv(), bdm::ArxDS::set_drv(), bdm::merger_base::set_sources(), and bdm::compositepdf::setrvc().

void bdm::RV::dataind	(	const RV &	rv2,
		ivec &	selfi,
		ivec &	rv2i
	)			const

generate mutual indices when copying data between self and crv. Data are copied via: data_of_this(selfi) = data_of_rv2(rv2i)

References findself(), ids, bdm::str::ids, times, bdm::str::times, and tostr().

ivec bdm::RV::dataind

(

const RV &

crv

)

const

when this rv is a part of bigger rv, this function returns indices of self in the data vector of the bigger crv. Then, data can be copied via: data_of_this = cdata(ind);

References dsize, ids, bdm::str::ids, times, bdm::str::times, and tostr().

Referenced by bdm::enorm< sq_T >::condition(), bdm::enorm< sq_T >::marginal(), and bdm::datalink::set_connection().

ivec bdm::RV::findself

(

const RV &

rv2

)

const

Find indices of self in another rv,.

Returns:

ivec of the same size as self.

References ids, and times.

Referenced by add(), dataind(), and subt().

void bdm::RV::from_setting

(

const Setting &

set

)

[virtual]

UI for class RV (description of data vectors).

  rv = {
    type = "rv"; //identifier of the description
    // UNIQUE IDENTIFIER same names = same variable
    names = ["a", "b", "c", ...];   // which will be used e.g. in loggers

    //optional arguments
    sizes = [1, 2, 3, ...];         // (optional) default = ones()
    times = [-1, -2, 0, ...];       // time shifts with respect to current time (optional) default = zeros()
  }

Reimplemented from bdm::root.

References bdm::UI::get().

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

• bdmbase.h
• bdmbase.cpp