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#ifndef TIMESERIESUTILS_H
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#define TIMESERIESUTILS_H
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#include "MultiComponentTimeSerie.h"
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#include "ScalarTimeSerie.h"
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#include "SpectrogramTimeSerie.h"
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#include "VectorTimeSerie.h"
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#include <TimeSeries.h>
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#include <cmath>
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#include <memory>
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namespace TimeSeriesUtils
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{
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template<typename T> TimeSeries::ITimeSerie* copy(T input_ts)
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{
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if constexpr(std::is_base_of_v<TimeSeries::ITimeSerie, T>)
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{
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if(auto ts = dynamic_cast<VectorTimeSerie*>(input_ts))
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{ return new VectorTimeSerie(*ts); }
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if(auto ts = dynamic_cast<ScalarTimeSerie*>(input_ts))
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{ return new ScalarTimeSerie(*ts); }
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if(auto ts = dynamic_cast<MultiComponentTimeSerie*>(input_ts))
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{ return new MultiComponentTimeSerie(*ts); }
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if(auto ts = dynamic_cast<SpectrogramTimeSerie*>(input_ts))
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{ return new SpectrogramTimeSerie(*ts); }
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}
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else
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{
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if(auto ts = std::dynamic_pointer_cast<VectorTimeSerie>(input_ts))
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{ return new VectorTimeSerie(*ts); }
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if(auto ts = std::dynamic_pointer_cast<ScalarTimeSerie>(input_ts))
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{ return new ScalarTimeSerie(*ts); }
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if(auto ts = std::dynamic_pointer_cast<SpectrogramTimeSerie>(input_ts))
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{ return new SpectrogramTimeSerie(*ts); }
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if(auto ts = std::dynamic_pointer_cast<MultiComponentTimeSerie>(input_ts))
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{ return new MultiComponentTimeSerie(*ts); }
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}
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return nullptr;
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}
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struct axis_properties
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{
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double range;
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double max_resolution;
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bool is_log;
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};
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constexpr auto IsLog = true;
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constexpr auto IsLinear = false;
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constexpr auto CheckMedian = true;
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constexpr auto DontCheckMedian = false;
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template<bool is_log, bool check_median>
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axis_properties axis_analysis(
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typename std::conditional<is_log, std::vector<double>&,
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const std::vector<double>&>::type axis)
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{
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std::vector<double> axis_diff(axis.size());
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if constexpr(is_log)
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{
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std::transform(std::cbegin(axis), std::cend(axis), std::begin(axis),
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[](const auto v) { return std::log10(v); });
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}
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auto range = *(std::cend(axis) - 1) - *(std::begin(axis));
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std::adjacent_difference(std::cbegin(axis), std::cend(axis),
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std::begin(axis_diff));
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auto min_diff =
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(*std::min_element(std::cbegin(axis_diff) + 1, std::cend(axis_diff)));
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if constexpr(check_median)
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{
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std::nth_element(std::begin(axis_diff) + 1,
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std::begin(axis_diff) + axis_diff.size() / 2,
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std::end(axis_diff));
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auto median_diff = *(std::begin(axis_diff) + axis_diff.size() / 2);
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if(median_diff > (4 * min_diff)) min_diff = median_diff;
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}
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return {range, min_diff, is_log};
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}
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} // namespace TimeSeriesUtils
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#endif
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