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/*
Copyright (C) 1997,1998,1999,2000,2001 Franz Josef Och
mkcls - a program for making word classes .
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
USA.
*/
#ifndef STATVAR_H
#define STATVAR_H
#include <cstdlib>
#include <iostream>
#include "Array.h"
#include "mystl.h"
#include "myleda.h"
#include <cmath>
extern double compareStatVarQuantil;
int compareStatVar(const void *p,const void *j);
class StatV
{
protected:
int n;
double sum;
double squareSum;
double smallest,biggest;
public:
const char *title;
StatV() : n(0),sum(0),squareSum(0),smallest(1e100),biggest(-1e100),title("") {}
virtual ~StatV();
virtual void addValue(double a)
{
n++;
sum+=a;
squareSum+=a*a;
if(smallest>a)
smallest=a;
if(biggest<a)
biggest=a;
}
double getMean()
{ return sum/n; }
double getSigma()
{
if(squareSum/n - getMean()*getMean()<=0)
return 0.0;
else
return sqrt(squareSum/n - getMean()*getMean());
}
double getBiggest()
{ return biggest; }
double getSmallest()
{ return smallest; }
int getNum()
{ return n; }
void dumpOn(ostream &strm);
};
class StatVar : public StatV
{
private:
Array<double> values;
short sortedFlag;
public:
StatVar()
: values(10,0.0,1),sortedFlag(0) {}
virtual ~StatVar(){}
double quantil(double percent=0.5);
inline double value(int i)
{return values[i];}
void printValues(ostream &strm);
virtual void addValue(double a)
{
sortedFlag=0;
values[n]=a;
StatV::addValue(a);
}
double getSigmaSmaller();
double getSigmaBigger();
};
#endif
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