Moving Average
Dependents: MovingAverage_HelloWorld Levitator EMG_Realtime_Filter EMG_Calibration ... more
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MovingAverage.h
- Committer:
- fblanc
- Date:
- 2014-12-16
- Revision:
- 4:ad69440a9bef
- Parent:
- 1:b310d132db09
File content as of revision 4:ad69440a9bef:
/* Copyright (c) 2014 LAAS-CNRS * * 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 MOVING_AVERAGE_H #define MOVING_AVERAGE_H template <class T> /** class of moving average * Example: * @code * #include "mbed.h" * #include "MovingAverage.h" * #define NSAMPLE 100 * Ticker flipperADC; * AnalogIn ain(A0); * MovingAverage <float>vavg(NSAMPLE,0.0); * void flipADC() * { * vavg.Insert(ain.read()); * } * int main() * { * flipperADC.attach_us(&flipADC, 10000); * while (true) * printf("analog= %f \r\n",vavg.GetAverage()); * } * @endcode */ class MovingAverage { private: T* Element; T Average; unsigned char NextElement; unsigned char MaxLength; public: /** Create moving average * @param maxLength is length of moving average * @param value is initial value */ MovingAverage(unsigned char maxLength, T defaultValue); /** Get the value of the moving average * @return value of the moving average */ T GetAverage(); /** Insert a element in moving average * @param value is the element inserted in moving average */ void Insert(T value); }; template<class T> MovingAverage<T>::MovingAverage(unsigned char maxLength, T defaultValue){ MaxLength = maxLength; Element = new T[MaxLength]; for(int i = 0; i<MaxLength;i++) { Element[i] = defaultValue; } Average = defaultValue; } template<class T> T MovingAverage<T>::GetAverage(){ return Average; } template<class T> void MovingAverage<T>::Insert(T value){ Average = value/MaxLength + Average - Element[++NextElement]/MaxLength; Element[NextElement] = value; if(NextElement>=(MaxLength-1)) NextElement=0; } #endif //MOVING_AVERAGE_H