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57 lines
1.2 KiB
57 lines
1.2 KiB
// -----------------------------------------------------------------------------
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// Moving Average Filter
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// Copyright (C) 2017-2019 by Xose Pérez <xose dot perez at gmail dot com>
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// -----------------------------------------------------------------------------
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#pragma once
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#include "BaseFilter.h"
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#include <vector>
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class MovingAverageFilter : public BaseFilter {
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public:
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void update(double value) override {
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if (_values.size() < _values.capacity()) {
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_values.push_back(value);
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}
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}
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size_t capacity() const override {
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return _values.capacity();
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}
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double value() const override {
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double out{ 0. };
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for (const auto& value : _values) {
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out += value;
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}
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if (_values.size()) {
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out /= _values.size();
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}
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return out;
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}
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void resize(size_t size) override {
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_values.reserve(size);
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_reset();
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}
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void reset() override {
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_reset();
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}
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private:
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void _reset() {
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if (_values.size()) {
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_values.erase(_values.begin(), _values.end() - 1);
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} else {
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_values.clear();
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}
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}
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std::vector<double> _values{};
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};
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