In file ../include/EST_simplestats.h:

class EST_SuffStats

A class for cummulating ``sufficient statistics'' for a set of numbers: sum, count, sum squared.

Public Methods

	EST_SuffStats ()
	EST_SuffStats (const EST_SuffStats &s)
void	copy (const EST_SuffStats &s)
void	reset (void) reset internal values
double	samples (void) number of samples in set
double	sum () sum of values
double	sumx () sum of squared values
double	mean (void) const mean of currently cummulated values
double	variance (void) const variance of currently cummulated values
double	stddev (void) const standard deviation of currently cummulated values
EST_SuffStats&	operator += (double a) Used to cummulate new values
EST_SuffStats&	operator + (double a) Used to cummulate new values
EST_SuffStats&	operator = (const EST_SuffStats &a)

Documentation

A class for cummulating ``sufficient statistics'' for a set of numbers: sum, count, sum squared.

This collects the number, sum and sum squared for a set of number. Offering mean, variance and standard deviation derived from the cummulated values.

EST_SuffStats()

EST_SuffStats(const EST_SuffStats &s)

void copy(const EST_SuffStats &s)

void reset(void)

reset internal values

double samples(void)

number of samples in set

double sum()

sum of values

double sumx()

sum of squared values

double mean(void) const

mean of currently cummulated values

double variance(void) const

variance of currently cummulated values

double stddev(void) const

standard deviation of currently cummulated values

EST_SuffStats& operator +=(double a)

Used to cummulate new values

EST_SuffStats& operator + (double a)

Used to cummulate new values

EST_SuffStats& operator = (const EST_SuffStats &a)

This class has no child classes.

Author:

Alan W Black (awb@cstr.ed.ac.uk): July 1996

Alphabetic index HTML hierarchy of classes or Java

This page is part of the Edinburgh Speech Tools Library documentation
Copyright University of Edinburgh 1997
Contact: speech_tools@cstr.ed.ac.uk