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51 lines
1.2 KiB
51 lines
1.2 KiB
// -----------------------------------------------------------------------------
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// Median Filter
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// -----------------------------------------------------------------------------
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#pragma once
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#include "AggregatorBase.h"
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class AggregatorMedian : public AggregatorBase {
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public:
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virtual void reset() {
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double last = _data->empty() ? 0 : _data->back();
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_data->clear();
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add(last);
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}
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virtual double result() {
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double sum = 0;
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if (_data->size() > 2) {
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for (unsigned char i = 1; i <= _data->size() - 2; i++) {
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double previous = _data->at(i-1);
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double current = _data->at(i);
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double next = _data->at(i+1);
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if (previous > current) std::swap(previous, current);
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if (current > next) std::swap(current, next);
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if (previous > current) std::swap(previous, current);
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sum += current;
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}
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sum /= (_data->size() - 2);
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} else if (_data->size() > 0) {
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sum = _data->front();
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}
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return sum;
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}
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};
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