bdm::CsvFileDS Class Reference

CSV file data storage The constructor creates Data matrix from the records in a CSV file fname. The orientation can be of two types: 1. BY_COL which is default - the data are stored in columns; one column per time , one row per data item. 2. BY_ROW if the data are stored the classical CSV style. Then each column stores the values for data item, for ex. , one row for each discrete time instant. More...

#include <datasources.h>

List of all members.

Public Member Functions
	CsvFileDS (const string &fname, const string &orientation="BY_COL")
	Constructor - create DS from a CSV file.
void	getdata (vec &dt)
	Returns full vector of observed data=[output, input].
void	getdata (vec &dt, const ivec &indices)
	Returns data records at indeces.
int	ndat ()
	returns number of data in the file;
void	log_add (logger &L)
	no sense to log this type
void	logit (logger &L)
	no sense to log this type
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().
void	set_rvs (RV &drv, RV &urv)
void	write (vec &ut)
	Accepts action variable and schedule it for application.
void	write (vec &ut, ivec &indices)
virtual void	write (vec &ut, const ivec &indeces)
	Accepts action variables at specific indeces.
void	step ()
	Moves from to , i.e. perfroms the actions and reads response of the system.
void	from_setting (const Setting &set)
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.
virtual void	validate ()
	This method TODO.
Protected Attributes
mat	Data
	internal matrix of data
int	time
	active column in the Data matrix
ivec	rowid
	vector of rows that are presented in Dt
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

CSV file data storage The constructor creates Data matrix from the records in a CSV file fname. The orientation can be of two types: 1. BY_COL which is default - the data are stored in columns; one column per time , one row per data item. 2. BY_ROW if the data are stored the classical CSV style. Then each column stores the values for data item, for ex. , one row for each discrete time instant.

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Member Function Documentation

void bdm::MemDS::from_setting

(

const Setting &

set

)

[inline, virtual, inherited]

Create object from the following structure

                { class = "MemDS";
                   Data = (...);            // Data matrix or data vector
                   --- optional ---
                   drv = {class="RV"; ...} // Identification how rows of the matrix Data will be known to others
                   time = 0;               // Index of the first column to user_info,
                   rowid = [1,2,3...];     // ids of rows to be used
                }

If the optional fields are not given, they will be filled as follows:

                rowid= [0, 1, 2, ...number_of_rows_of_Data];
                drv = {names=("ch0", "ch1", "ch2", ..."number_of_rows_of_Data");
                      sizes=( 1    1    1 ...);
                          times=( 0    0    0 ...);
                          };
                time = 0;

If rowid is given, drv will be named after indeces in rowids.

Hence the data provided by method getdata() will be full column of matrix Data starting from the first record.

Reimplemented from bdm::root.

Reimplemented in bdm::ITppFileDS, and bdm::mxArrayDS.

References bdm::MemDS::Data, bdm::DS::dtsize, bdm::UI::get(), bdm::MemDS::rowid, bdm::DS::set_drv(), bdm::MemDS::time, and bdm::DS::utsize.

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

• datasources.h
• datasources.cpp