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mrpt::graphslam::TSlidingWindow Struct Reference

Detailed Description

Class to monitor the evolution of a statistical quantity.

Description

Keeps track of the last N incoming measurements of the quantity at hand and upon request returns statistical properties of these measurements (mean, median, etc.)

Class also contains methods for evaluating incoming measurements (whether to accept or reject those)

.ini Configuration Parameters

The configuration parameters of the current decider class are listed below. These parameters are parsed from an external .ini configuration file from their respective section. If an optional parameter is not found a default value is used instead. If a mandatory/required parameter is not found a runtime error is raised. For a sample configuration file see $mrpt/share/mrpt/config_files/graphslam-engine/laser_odometry.ini (Modify $mrpt according to the path of your mrpt source directory).

Definition at line 48 of file TSlidingWindow.h.

#include <mrpt/graphslam/misc/TSlidingWindow.h>

Inheritance diagram for mrpt::graphslam::TSlidingWindow:
Inheritance graph

Public Member Functions

 TSlidingWindow (std::string name="window")
 
 ~TSlidingWindow ()
 
double getMedian ()
 Return the current median value. More...
 
double getMean ()
 Return the current mean value. More...
 
double getStdDev ()
 Return the Standard deviation of the current measurement vector. More...
 
bool evaluateMeasurementInGaussian (double measurement)
 Determine whether the incoming measurement is inside the [-3sigma, +3sigma] boundaries from the current mean value. More...
 
bool evaluateMeasurementAbove (double value)
 Determine whether the incoming measurement is over the current mean value. More...
 
bool evaluateMeasurementBelow (double value)
 Determine whether the incoming measurement is less or equal to the current mean value. More...
 
void addNewMeasurement (double measurement)
 Update the sliding window by appending a new measurement. More...
 
void resizeWindow (size_t new_size)
 Resize the window. More...
 
void loadFromConfigFile (const mrpt::utils::CConfigFileBase &source, const std::string &section)
 This method load the options from a ".ini"-like file or memory-stored string list. More...
 
void dumpToTextStream (mrpt::utils::CStream &out) const
 This method should clearly display all the contents of the structure in textual form, sending it to a CStream. More...
 
size_t getWindowSize () const
 Return the size of the window. More...
 
bool windowIsFull () const
 Check if the window has reached its limit. More...
 
void loadFromConfigFileName (const std::string &config_file, const std::string &section)
 Behaves like loadFromConfigFile, but you can pass directly a file name and a temporary CConfigFile object will be created automatically to load the file. More...
 
virtual void saveToConfigFile (mrpt::utils::CConfigFileBase &target, const std::string &section) const
 This method saves the options to a ".ini"-like file or memory-stored string list. More...
 
void saveToConfigFileName (const std::string &config_file, const std::string &section) const
 Behaves like saveToConfigFile, but you can pass directly a file name and a temporary CConfigFile object will be created automatically to save the file. More...
 
void dumpToConsole () const
 Just like dumpToTextStream() but sending the text to the console (std::cout) More...
 

Static Protected Member Functions

static void dumpVar_int (CStream &out, const char *varName, int v)
 Used to print variable info from dumpToTextStream with the macro LOADABLEOPTS_DUMP_VAR. More...
 
static void dumpVar_float (CStream &out, const char *varName, float v)
 
static void dumpVar_double (CStream &out, const char *varName, double v)
 
static void dumpVar_bool (CStream &out, const char *varName, bool v)
 
static void dumpVar_string (CStream &out, const char *varName, const std::string &v)
 

Private Attributes

size_t m_win_size
 
std::vector< double > m_measurements_vec
 
std::string m_name
 Name of the TSlidingWindow Instance at hand. More...
 
double m_mean_cached
 Cached mean value. More...
 
double m_median_cached
 Cached median value. More...
 
double m_std_dev_cached
 Cached version of the standard deviation. More...
 
bool m_mean_updated
 Is the mean up-to-date? More...
 
bool m_median_updated
 Is the median up-to-date? More...
 
bool m_std_dev_updated
 Is the standard deviation up-to-date? More...
 
bool m_is_initialized
 flag is raised the first time that TSlidingWindow::addNewMeasurement is called More...
 

Constructor & Destructor Documentation

◆ TSlidingWindow()

mrpt::graphslam::TSlidingWindow::TSlidingWindow ( std::string  name = "window")

◆ ~TSlidingWindow()

mrpt::graphslam::TSlidingWindow::~TSlidingWindow ( )

Member Function Documentation

◆ addNewMeasurement()

void mrpt::graphslam::TSlidingWindow::addNewMeasurement ( double  measurement)

◆ dumpToConsole()

void mrpt::utils::CLoadableOptions::dumpToConsole ( ) const
inherited

◆ dumpToTextStream()

void mrpt::graphslam::TSlidingWindow::dumpToTextStream ( mrpt::utils::CStream out) const
virtual

This method should clearly display all the contents of the structure in textual form, sending it to a CStream.

The default implementation in this base class relies on saveToConfigFile() to generate a plain text representation of all the parameters.

Reimplemented from mrpt::utils::CLoadableOptions.

◆ dumpVar_bool()

static void mrpt::utils::CLoadableOptions::dumpVar_bool ( CStream out,
const char *  varName,
bool  v 
)
staticprotectedinherited

◆ dumpVar_double()

static void mrpt::utils::CLoadableOptions::dumpVar_double ( CStream out,
const char *  varName,
double  v 
)
staticprotectedinherited

◆ dumpVar_float()

static void mrpt::utils::CLoadableOptions::dumpVar_float ( CStream out,
const char *  varName,
float  v 
)
staticprotectedinherited

◆ dumpVar_int()

static void mrpt::utils::CLoadableOptions::dumpVar_int ( CStream out,
const char *  varName,
int  v 
)
staticprotectedinherited

Used to print variable info from dumpToTextStream with the macro LOADABLEOPTS_DUMP_VAR.

◆ dumpVar_string()

static void mrpt::utils::CLoadableOptions::dumpVar_string ( CStream out,
const char *  varName,
const std::string &  v 
)
staticprotectedinherited

◆ evaluateMeasurementAbove()

bool mrpt::graphslam::TSlidingWindow::evaluateMeasurementAbove ( double  value)

Determine whether the incoming measurement is over the current mean value.

Returns
True if it's above the mean

◆ evaluateMeasurementBelow()

bool mrpt::graphslam::TSlidingWindow::evaluateMeasurementBelow ( double  value)

Determine whether the incoming measurement is less or equal to the current mean value.

Returns
True if it's <= to the mean

◆ evaluateMeasurementInGaussian()

bool mrpt::graphslam::TSlidingWindow::evaluateMeasurementInGaussian ( double  measurement)

Determine whether the incoming measurement is inside the [-3sigma, +3sigma] boundaries from the current mean value.

Returns
True if it's inside the uncertainty boundaries

◆ getMean()

double mrpt::graphslam::TSlidingWindow::getMean ( )

Return the current mean value.

◆ getMedian()

double mrpt::graphslam::TSlidingWindow::getMedian ( )

◆ getStdDev()

double mrpt::graphslam::TSlidingWindow::getStdDev ( )

Return the Standard deviation of the current measurement vector.

◆ getWindowSize()

size_t mrpt::graphslam::TSlidingWindow::getWindowSize ( ) const

Return the size of the window.

◆ loadFromConfigFile()

void mrpt::graphslam::TSlidingWindow::loadFromConfigFile ( const mrpt::utils::CConfigFileBase source,
const std::string &  section 
)
virtual

This method load the options from a ".ini"-like file or memory-stored string list.

Only those parameters found in the given "section" and having the same name that the variable are loaded. Those not found in the file will stay with their previous values (usually the default values loaded at initialization). An example of an ".ini" file:

[section]
resolution = 0.10 // blah blah...
modeSelection = 1 // 0=blah, 1=blah,...
See also
loadFromConfigFileName, saveToConfigFile

Implements mrpt::utils::CLoadableOptions.

◆ loadFromConfigFileName()

void mrpt::utils::CLoadableOptions::loadFromConfigFileName ( const std::string &  config_file,
const std::string &  section 
)
inherited

◆ resizeWindow()

void mrpt::graphslam::TSlidingWindow::resizeWindow ( size_t  new_size)

Resize the window.

Note
Method affects the underlying vector only if the new_size specified has already been reached

Referenced by mrpt::graphslam::deciders::CLoopCloserERD< GRAPH_T >::TLaserParams::TLaserParams().

◆ saveToConfigFile()

virtual void mrpt::utils::CLoadableOptions::saveToConfigFile ( mrpt::utils::CConfigFileBase target,
const std::string &  section 
) const
virtualinherited

◆ saveToConfigFileName()

void mrpt::utils::CLoadableOptions::saveToConfigFileName ( const std::string &  config_file,
const std::string &  section 
) const
inherited

Behaves like saveToConfigFile, but you can pass directly a file name and a temporary CConfigFile object will be created automatically to save the file.

See also
saveToConfigFile, loadFromConfigFileName

◆ windowIsFull()

bool mrpt::graphslam::TSlidingWindow::windowIsFull ( ) const

Check if the window has reached its limit.

This limit is set by the user via the resizeWindow method.

See also
resizeWindow

Member Data Documentation

◆ m_is_initialized

bool mrpt::graphslam::TSlidingWindow::m_is_initialized
private

flag is raised the first time that TSlidingWindow::addNewMeasurement is called

Definition at line 118 of file TSlidingWindow.h.

◆ m_mean_cached

double mrpt::graphslam::TSlidingWindow::m_mean_cached
private

Cached mean value.

Definition at line 107 of file TSlidingWindow.h.

◆ m_mean_updated

bool mrpt::graphslam::TSlidingWindow::m_mean_updated
private

Is the mean up-to-date?

Definition at line 110 of file TSlidingWindow.h.

◆ m_measurements_vec

std::vector<double> mrpt::graphslam::TSlidingWindow::m_measurements_vec
private

Definition at line 102 of file TSlidingWindow.h.

◆ m_median_cached

double mrpt::graphslam::TSlidingWindow::m_median_cached
private

Cached median value.

Definition at line 108 of file TSlidingWindow.h.

◆ m_median_updated

bool mrpt::graphslam::TSlidingWindow::m_median_updated
private

Is the median up-to-date?

Definition at line 111 of file TSlidingWindow.h.

◆ m_name

std::string mrpt::graphslam::TSlidingWindow::m_name
private

Name of the TSlidingWindow Instance at hand.

Definition at line 105 of file TSlidingWindow.h.

◆ m_std_dev_cached

double mrpt::graphslam::TSlidingWindow::m_std_dev_cached
private

Cached version of the standard deviation.

Definition at line 109 of file TSlidingWindow.h.

◆ m_std_dev_updated

bool mrpt::graphslam::TSlidingWindow::m_std_dev_updated
private

Is the standard deviation up-to-date?

Definition at line 112 of file TSlidingWindow.h.

◆ m_win_size

size_t mrpt::graphslam::TSlidingWindow::m_win_size
private

Definition at line 101 of file TSlidingWindow.h.




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