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Diffstat (limited to 'include/cpustats/CentralTendencyStatistics.h')
| -rw-r--r-- | include/cpustats/CentralTendencyStatistics.h | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/include/cpustats/CentralTendencyStatistics.h b/include/cpustats/CentralTendencyStatistics.h deleted file mode 100644 index 21b6981..0000000 --- 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 |
