bdm::RV Class Reference

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


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

inline_dotgraph_2.dot

#include <bdmbase.h>

List of all members.

Public Member Functions

void from_setting (const Setting &set)
 UI for class RV (description of data vectors).
string show_all ()
 function for debugging RV related stuff
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,.
ivec findself_ids (const RV &rv2) const
 Find indices of self in another rv, ignore time,.
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_plus (int delta)
 Shift time by delta.
Time manipulation functions

returns rvs with time set to 0 and removed duplicates



RV remove_time () const
RV copy_t (int dt) const
 create new RV from the current one with time shifted by given value
RV expand_delayes () const
 return rvs with expanded delayes and sorted in the order of:
Relation to vectors



str tostr () const
 generate str from rv, by expanding sizes
ivec 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);
ivec dataind_part (const RV &crv) const
 same as dataind but this time crv should not be complete supperset of rv.
void 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)
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



string to_string ()
 This method returns a basic info about the current instance.
int _dsize () const
 total size of a random variable
const ivec & _ids () const
 access function
int countsize () const
 Recount size of the corresponding data vector.
ivec cumsizes () const
 Vector of cumulative sizes of RV.
int length () const
 Number of named parts.
int id (int at) const
int size (int at) const
int time (int at) const
std::string name (int at) const
std::string scalarname (int scalat) const
 returns name of a scalar at position scalat, i.e. it can be in the middle of vector name, in that case it adds "_%d" to it
void set_time (int at, int time0)
std::ostream & operator<< (std::ostream &os, const RV &rv)
 State output, e.g. for debugging.

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::StateCanonical::connect_mlnorm(), expand_delayes(), bdm::ArxDS::set_drv(), bdm::mprod::set_elements(), bdm::eprod::set_parameters(), and bdm::merger_base::set_sources().

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, length(), and times.

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

ivec bdm::RV::findself_ids ( const RV rv2  )  const

Find indices of self in another rv, ignore time,.

Returns:
ivec of the same size as self.

References ids, and length().

Referenced by bdm::datalink_buffered::set_connection().

void bdm::RV::from_setting ( const Setting &  set  )  [virtual]

UI for class RV (description of data vectors).

        rv = {
            class = "RV"; // class name
          // 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().


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

Generated on Wed Sep 16 22:33:33 2009 for mixpp by  doxygen 1.6.1