<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML> <HEAD> <TITLE>class EST_SuffStats</TITLE> <META NAME="GENERATOR" CONTENT="DOC++ 3.4.6"> </HEAD> <body bgcolor="#ffffff" link="#0000ff" vlink="#dd0000" text="#000088" alink="9000ff"> <A HREF = "http://www.cstr.ed.ac.uk/"> <IMG align=left BORDER=0 SRC = "cstr.gif"></A> <A HREF="http://www.cstr.ed.ac.uk/projects/speech_tools.html"> <IMG BORDER=0 ALIGN=right SRC="est.jpg" width=150 height=93></A> <br> <br clear=left> <p align=right> In file ../include/EST_simplestats.h:<TABLE BORDER=0><TR> <TD VALIGN=TOP><H2>class <A HREF="#DOC.DOCU">EST_SuffStats</A></H2></TD></H2></TD></TR></TABLE> <BLOCKQUOTE>A class for cummulating ``sufficient statistics'' for a set of numbers: sum, count, sum squared.</BLOCKQUOTE> <HR> <DL> <P><TABLE> <DT><H3>Public Methods</H3><DD><TR> <TD VALIGN=TOP><A HREF="#DOC.84.1"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A> </TD><TD><B>EST_SuffStats</B> ()<BR> <I></I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.2"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A> </TD><TD><B>EST_SuffStats</B> (const <!1><A HREF="EST_SuffStats.html#DOC.84.2">EST_SuffStats</A> &s)<BR> <I></I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.3"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A>void </TD><TD><B>copy</B> (const <!1><A HREF="EST_SuffStats.html">EST_SuffStats</A> &s)<BR> <I></I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.4"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A>void </TD><TD><B>reset</B> (void)<BR> <I>reset internal values</I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.5"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A>double </TD><TD><B>samples</B> (void)<BR> <I>number of samples in set</I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.6"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A>double </TD><TD><B>sum</B> ()<BR> <I>sum of values</I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.7"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A>double </TD><TD><B>sumx</B> ()<BR> <I>sum of squared values </I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.8"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A>double </TD><TD><B>mean</B> (void) const <BR> <I>mean of currently cummulated values</I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.9"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A>double </TD><TD><B>variance</B> (void) const <BR> <I>variance of currently cummulated values </I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.10"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A>double </TD><TD><B>stddev</B> (void) const <BR> <I>standard deviation of currently cummulated values</I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.11"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A><!1><A HREF="EST_SuffStats.html">EST_SuffStats</A>& </TD><TD><B>operator +=</B> (double <!1><A HREF="EST_Wave.html#DOC.81.4.1">a</A>)<BR> <I>Used to cummulate new values</I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.12"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A><!1><A HREF="EST_SuffStats.html">EST_SuffStats</A>& </TD><TD><B>operator + </B> (double <!1><A HREF="EST_Wave.html#DOC.81.4.1">a</A>)<BR> <I>Used to cummulate new values</I> </TD></TR><TR> <TD VALIGN=TOP><A HREF="#DOC.84.13"><IMG ALT="[more]" BORDER=0 SRC=icon1.gif></A><!1><A HREF="EST_SuffStats.html">EST_SuffStats</A>& </TD><TD><B>operator = </B> (const <!1><A HREF="EST_SuffStats.html">EST_SuffStats</A> &<!1><A HREF="EST_Wave.html#DOC.81.4.1">a</A>)<BR> <I></I> </TD></TR></TABLE></P> </DL> <A NAME="DOC.DOCU"></A> <HR> <H2>Documentation</H2> <BLOCKQUOTE>A class for cummulating ``sufficient statistics'' for a set of numbers: sum, count, sum squared. <P>This collects the number, sum and sum squared for a set of number. Offering mean, variance and standard deviation derived from the cummulated values. <P></BLOCKQUOTE> <DL> <A NAME="EST_SuffStats"></A> <A NAME="DOC.84.1"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> EST_SuffStats()</B></TT> <DL><DT><DD></DL><P> <A NAME="EST_SuffStats"></A> <A NAME="DOC.84.2"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B> EST_SuffStats(const <!1><A HREF="EST_SuffStats.html#DOC.84.2">EST_SuffStats</A> &s)</B></TT> <DL><DT><DD></DL><P> <A NAME="copy"></A> <A NAME="DOC.84.3"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void copy(const <!1><A HREF="EST_SuffStats.html">EST_SuffStats</A> &s)</B></TT> <DL><DT><DD></DL><P> <A NAME="reset"></A> <A NAME="DOC.84.4"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>void reset(void)</B></TT> <DD>reset internal values <DL><DT><DD></DL><P> <A NAME="samples"></A> <A NAME="DOC.84.5"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>double samples(void)</B></TT> <DD>number of samples in set <DL><DT><DD></DL><P> <A NAME="sum"></A> <A NAME="DOC.84.6"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>double sum()</B></TT> <DD>sum of values <DL><DT><DD></DL><P> <A NAME="sumx"></A> <A NAME="DOC.84.7"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>double sumx()</B></TT> <DD>sum of squared values <DL><DT><DD></DL><P> <A NAME="mean"></A> <A NAME="DOC.84.8"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>double mean(void) const </B></TT> <DD>mean of currently cummulated values <DL><DT><DD></DL><P> <A NAME="variance"></A> <A NAME="DOC.84.9"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>double variance(void) const </B></TT> <DD>variance of currently cummulated values <DL><DT><DD></DL><P> <A NAME="stddev"></A> <A NAME="DOC.84.10"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B>double stddev(void) const </B></TT> <DD>standard deviation of currently cummulated values <DL><DT><DD></DL><P> <A NAME="operator +="></A> <A NAME="DOC.84.11"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="EST_SuffStats.html">EST_SuffStats</A>& operator +=(double <!1><A HREF="EST_Wave.html#DOC.81.4.1">a</A>)</B></TT> <DD>Used to cummulate new values <DL><DT><DD></DL><P> <A NAME="operator + "></A> <A NAME="DOC.84.12"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="EST_SuffStats.html">EST_SuffStats</A>& operator + (double <!1><A HREF="EST_Wave.html#DOC.81.4.1">a</A>)</B></TT> <DD>Used to cummulate new values <DL><DT><DD></DL><P> <A NAME="operator = "></A> <A NAME="DOC.84.13"></A> <DT><IMG ALT="o" BORDER=0 SRC=icon2.gif><TT><B><!1><A HREF="EST_SuffStats.html">EST_SuffStats</A>& operator = (const <!1><A HREF="EST_SuffStats.html">EST_SuffStats</A> &<!1><A HREF="EST_Wave.html#DOC.81.4.1">a</A>)</B></TT> <DL><DT><DD></DL><P></DL> <HR><DL><DT><B>This class has no child classes.</B></DL> <DL><DT><DT><B>Author:</B><DD>Alan W Black (awb@cstr.ed.ac.uk): July 1996 <DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I> <I><A HREF="HIER.html">HTML hierarchy of classes</A> or <A HREF="HIERjava.html">Java</A></I></P><HR> <A HREF = "http://www.ed.ac.uk/"> <IMG align=right BORDER=0 SRC = "edcrest.gif"></A> <P Align=left><I>This page is part of the <A HREF="http://www.cstr.ed.ac.uk/projects/speech_tools.html"> Edinburgh Speech Tools Library</A> documentation <br> Copyright <A HREF="http://www.ed.ac.uk"> University of Edinburgh</A> 1997 <br> Contact: <A HREF="mailto:speech_toolss@cstr.ed.ac.uk"> speech_tools@cstr.ed.ac.uk </a> </P> <br clear=right>