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103 lines
2.2 KiB
C++
103 lines
2.2 KiB
C++
#pragma once
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//
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// FILE: Histogram.h
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// AUTHOR: Rob Tillaart
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// VERSION: 0.3.4
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// PURPOSE: Histogram library for Arduino
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// DATE: 2012-11-10
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#include "Arduino.h"
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#define HISTOGRAM_LIB_VERSION (F("0.3.4"))
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// return STATUS add(), sub(), clear(), setBucket();
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#define HISTO_OK 0x00 // idem
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#define HISTO_FULL 0x01 // just got full
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#define HISTO_ERR_FULL 0xFF // over- underflow
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#define HISTO_ERR_LENGTH 0xFE // constructor issue.
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class Histogram
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{
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public:
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Histogram(const uint16_t length, float * bounds);
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~Histogram();
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uint8_t clear(int32_t value = 0);
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uint8_t add(const float value);
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uint8_t sub(const float value);
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virtual uint8_t setBucket(const uint16_t index, int32_t value = 0);
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// returns last known status
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uint8_t status();
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// number of buckets
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uint16_t size();
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// number of values added to all buckets
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uint32_t count();
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// number of values added to single bucket
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int32_t bucket(const uint16_t index);
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float frequency(const uint16_t index);
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float PMF(const float value);
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float CDF(const float value);
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float VAL(const float probability);
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int32_t sum();
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uint16_t find(const float value);
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uint16_t findMin();
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uint16_t findMax();
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uint16_t countLevel(const int32_t level);
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uint16_t countAbove(const int32_t level);
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uint16_t countBelow(const int32_t level);
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// use with care
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int32_t getMaxBucket();
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void setMaxBucket(int32_t value);
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protected:
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float * _bounds;
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int32_t * _data;
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uint16_t _length;
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uint32_t _count;
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int32_t _maxBucket;
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uint8_t _status;
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};
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//////////////////////////////////////////////////////////////
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//
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// DERIVED CLASS
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//
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class Histogram16 : public Histogram
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{
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public:
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Histogram16(const uint16_t length, float * bounds);
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~Histogram16();
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uint8_t setBucket(const uint16_t index, int16_t value = 0);
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protected:
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int16_t * _data;
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};
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class Histogram8 : public Histogram
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{
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public:
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Histogram8(const uint16_t length, float * bounds);
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~Histogram8();
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uint8_t setBucket(const uint16_t index, int8_t value = 0);
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protected:
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int8_t * _data;
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};
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// -- END OF FILE --
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