1 files changed, 0 insertions, 64 deletions
diff --git a/src/ipa/raspberrypi/controller/histogram.cpp b/src/ipa/raspberrypi/controller/histogram.cpp
deleted file mode 100644
index 9916b3ed..00000000
--- a/src/ipa/raspberrypi/controller/histogram.cpp
+++ /dev/null
@@ -1,64 +0,0 @@
-/* SPDX-License-Identifier: BSD-2-Clause */
-/*
- * Copyright (C) 2019, Raspberry Pi (Trading) Limited
- *
- * histogram.cpp - histogram calculations
- */
-#include <math.h>
-#include <stdio.h>
-
-#include "histogram.hpp"
-
-using namespace RPiController;
-
-uint64_t Histogram::CumulativeFreq(double bin) const
-{
-	if (bin <= 0)
-		return 0;
-	else if (bin >= Bins())
-		return Total();
-	int b = (int)bin;
-	return cumulative_[b] +
-	       (bin - b) * (cumulative_[b + 1] - cumulative_[b]);
-}
-
-double Histogram::Quantile(double q, int first, int last) const
-{
-	if (first == -1)
-		first = 0;
-	if (last == -1)
-		last = cumulative_.size() - 2;
-	assert(first <= last);
-	uint64_t items = q * Total();
-	while (first < last) // binary search to find the right bin
-	{
-		int middle = (first + last) / 2;
-		if (cumulative_[middle + 1] > items)
-			last = middle; // between first and middle
-		else
-			first = middle + 1; // after middle
-	}
-	assert(items >= cumulative_[first] && items <= cumulative_[last + 1]);
-	double frac = cumulative_[first + 1] == cumulative_[first] ? 0
-		      : (double)(items - cumulative_[first]) /
-				  (cumulative_[first + 1] - cumulative_[first]);
-	return first + frac;
-}
-
-double Histogram::InterQuantileMean(double q_lo, double q_hi) const
-{
-	assert(q_hi > q_lo);
-	double p_lo = Quantile(q_lo);
-	double p_hi = Quantile(q_hi, (int)p_lo);
-	double sum_bin_freq = 0, cumul_freq = 0;
-	for (double p_next = floor(p_lo) + 1.0; p_next <= ceil(p_hi);
-	     p_lo = p_next, p_next += 1.0) {
-		int bin = floor(p_lo);
-		double freq = (cumulative_[bin + 1] - cumulative_[bin]) *
-			      (std::min(p_next, p_hi) - p_lo);
-		sum_bin_freq += bin * freq;
-		cumul_freq += freq;
-	}
-	// add 0.5 to give an average for bin mid-points
-	return sum_bin_freq / cumul_freq + 0.5;
-}