summaryrefslogtreecommitdiff
path: root/src/ipa/raspberrypi/controller/histogram.hpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/ipa/raspberrypi/controller/histogram.hpp')
-rw-r--r--src/ipa/raspberrypi/controller/histogram.hpp48
1 files changed, 0 insertions, 48 deletions
diff --git a/src/ipa/raspberrypi/controller/histogram.hpp b/src/ipa/raspberrypi/controller/histogram.hpp
deleted file mode 100644
index 2ed8d971..00000000
--- a/src/ipa/raspberrypi/controller/histogram.hpp
+++ /dev/null
@@ -1,48 +0,0 @@
-/* SPDX-License-Identifier: BSD-2-Clause */
-/*
- * Copyright (C) 2019, Raspberry Pi (Trading) Limited
- *
- * histogram.hpp - histogram calculation interface
- */
-#pragma once
-
-#include <stdint.h>
-#include <vector>
-#include <cassert>
-
-/*
- * A simple histogram class, for use in particular to find "quantiles" and
- * averages between "quantiles".
- */
-
-namespace RPiController {
-
-class Histogram
-{
-public:
- template<typename T> Histogram(T *histogram, int num)
- {
- assert(num);
- cumulative_.reserve(num + 1);
- cumulative_.push_back(0);
- for (int i = 0; i < num; i++)
- cumulative_.push_back(cumulative_.back() +
- histogram[i]);
- }
- uint32_t bins() const { return cumulative_.size() - 1; }
- uint64_t total() const { return cumulative_[cumulative_.size() - 1]; }
- /* Cumulative frequency up to a (fractional) point in a bin. */
- uint64_t cumulativeFreq(double bin) const;
- /*
- * Return the (fractional) bin of the point q (0 <= q <= 1) through the
- * histogram. Optionally provide limits to help.
- */
- double quantile(double q, int first = -1, int last = -1) const;
- /* Return the average histogram bin value between the two quantiles. */
- double interQuantileMean(double qLo, double qHi) const;
-
-private:
- std::vector<uint64_t> cumulative_;
-};
-
-} /* namespace RPiController */