mirror of
https://github.com/RobTillaart/Arduino.git
synced 2024-09-20 00:55:58 -04:00
07534d77f7
+ changed float -> double to support ARM series + moved some code to .h file so compiler can optimize more + reindented
54 lines
1.3 KiB
C++
54 lines
1.3 KiB
C++
#ifndef Statistic_h
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#define Statistic_h
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//
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// FILE: Statistic.h
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// AUTHOR: Rob dot Tillaart at gmail dot com
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// modified at 0.3 by Gil Ross at physics dot org
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// VERSION: 0.3.3
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// PURPOSE: Recursive Statistical library for Arduino
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// HISTORY: See Statistic.cpp
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//
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// Released to the public domain
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//
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// the standard deviation increases the lib (<100 bytes)
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// it can be in/excluded by un/commenting next line
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#define STAT_USE_STDEV
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#include <math.h>
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#define STATISTIC_LIB_VERSION "0.3.3"
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class Statistic
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{
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public:
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Statistic();
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void clear();
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void add(double);
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// returns the number of values added
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unsigned long count() { return _cnt; }; // zero if empty
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double sum() { return _sum; }; // zero if empty
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double minimum() { return _min; }; // zero if empty
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double maximum() { return _max; }; // zero if empty
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double average();
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#ifdef STAT_USE_STDEV
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double variance();
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double pop_stdev(); // population stdev
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double unbiased_stdev();
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#endif
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protected:
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unsigned long _cnt;
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double _store; // store to minimise computation
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double _sum;
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double _min;
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double _max;
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#ifdef STAT_USE_STDEV
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double _ssqdif; // sum of squares difference
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#endif
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};
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#endif
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// END OF FILE
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