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-rw-r--r--include/cpustats/CentralTendencyStatistics.h75
1 files changed, 0 insertions, 75 deletions
diff --git a/include/cpustats/CentralTendencyStatistics.h b/include/cpustats/CentralTendencyStatistics.h
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--- a/include/cpustats/CentralTendencyStatistics.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Copyright (C) 2011 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#ifndef _CENTRAL_TENDENCY_STATISTICS_H
-#define _CENTRAL_TENDENCY_STATISTICS_H
-
-#include <math.h>
-
-// Not multithread safe
-class CentralTendencyStatistics {
-
-public:
-
- CentralTendencyStatistics() :
- mMean(NAN), mMedian(NAN), mMinimum(INFINITY), mMaximum(-INFINITY), mN(0), mM2(0),
- mVariance(NAN), mVarianceKnownForN(0), mStddev(NAN), mStddevKnownForN(0) { }
-
- ~CentralTendencyStatistics() { }
-
- // add x to the set of samples
- void sample(double x);
-
- // return the arithmetic mean of all samples so far
- double mean() const { return mMean; }
-
- // return the minimum of all samples so far
- double minimum() const { return mMinimum; }
-
- // return the maximum of all samples so far
- double maximum() const { return mMaximum; }
-
- // return the variance of all samples so far
- double variance() const;
-
- // return the standard deviation of all samples so far
- double stddev() const;
-
- // return the number of samples added so far
- unsigned n() const { return mN; }
-
- // reset the set of samples to be empty
- void reset();
-
-private:
- double mMean;
- double mMedian;
- double mMinimum;
- double mMaximum;
- unsigned mN; // number of samples so far
- double mM2;
-
- // cached variance, and n at time of caching
- mutable double mVariance;
- mutable unsigned mVarianceKnownForN;
-
- // cached standard deviation, and n at time of caching
- mutable double mStddev;
- mutable unsigned mStddevKnownForN;
-
-};
-
-#endif // _CENTRAL_TENDENCY_STATISTICS_H