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Jungfraujoch/common/Histogram.h
2025-05-28 18:49:27 +02:00

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2.2 KiB
C++

// SPDX-FileCopyrightText: 2024 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only
#ifndef JUNGFRAUJOCH_HISTOGRAM_H
#define JUNGFRAUJOCH_HISTOGRAM_H
#include <cstdint>
#include <cstddef>
#include <vector>
#include <mutex>
#include "MultiLinePlot.h"
#include "../common/JFJochException.h"
template <class T>
class SetAverage {
std::vector<T> sum;
std::vector<uint64_t> count;
std::mutex m;
public:
explicit SetAverage(size_t bins) : sum(bins), count(bins) {}
void Add(size_t bin, T val) {
std::unique_lock ul(m);
if (bin < sum.size()) {
sum[bin] += val;
count[bin] += 1;
}
}
MultiLinePlot GetPlot() {
std::unique_lock ul(m);
MultiLinePlotStruct plot;
plot.x.resize(sum.size());
plot.y.resize(sum.size());
for (int i = 0; i < sum.size(); i++) {
plot.x[i] = static_cast<float>(i);
if (count[i] > 0)
plot.y[i] = static_cast<float>(sum[i]) / count[i];
else
plot.y[i] = 0;
}
MultiLinePlot ret;
ret.AddPlot(plot);
return ret;
}
};
class FloatHistogram {
std::vector<uint64_t> count;
std::mutex m;
float min;
float max;
float spacing;
public:
explicit FloatHistogram(size_t bins, float in_min, float in_max) : count(bins), min(in_min), max(in_max) {
if (bins == 0)
throw JFJochException(JFJochExceptionCategory::InputParameterBelowMin, "FloatHistogram neds to have non-zero bins");
spacing = (max - min) / bins;
}
void Add(float val) {
std::unique_lock ul(m);
size_t bin = (val - min) / spacing;
if (bin < count.size())
count[bin] += 1;
}
MultiLinePlot GetPlot() {
std::unique_lock ul(m);
MultiLinePlotStruct plot;
plot.x.resize(count.size());
plot.y.resize(count.size());
for (int i = 0; i < count.size(); i++) {
plot.x[i] = min + (i + 0.5f) * spacing;
plot.y[i] = static_cast<float>(count[i]);
}
MultiLinePlot ret;
ret.AddPlot(plot);
return ret;
}
};
#endif //JUNGFRAUJOCH_HISTOGRAM_H