SubsetStat.h

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/***************************************************************************

 Simple statistics object for internal alignment use

 ***************************************************************************/

#ifndef GUARD_SUBSETSTAT_H
#define GUARD_SUBSETSTAT_H

using namespace std;

typedef struct SubsetSummary
{
   double mean;
   double sigma;
   double sum;
   unsigned int size;   
} SubsetSummary;

class SubsetStat
{
public:
   
   // Constructors & Destructors
   SubsetStat();
   virtual ~SubsetStat() {};

   //increment sum amd sum of squares
   void Fill(const double &value);
   
   //calculate and return mean of current subset
   double GetMean() const;
   
   //calculate and return sigma of current subset
   double GetSigma() const;
   
   //return size of current subset
   unsigned int GetSize() const {return size;};

   //return sum of filled values
   double GetSum() const {return sum;};

   //return sum of squares of filled values
   double GetSum2() const {return sum2;};

   //Set variables to zero
   void Reset();

private:
   
   unsigned int  size;     //current number of entries in subset
   double        sum;      //sum of entries
   double        sum2;     //sum of entries squared
};

#endif // GUARD_SUBSETSTAT_H

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