public static IList <DeviceAccelerationCombined> FilterDeviceAccelerationCombinedCollection(IList <DeviceAccelerationCombined> deviceAccelerationCombinedCollection, int windowSize = 20)
{
var deviceAccelerationCombinedFilteredCollection = new List <DeviceAccelerationCombined>();
// The windows default size is 20
var movingFilter = new MovingAverage(windowSize);
for (int i = 0; i < deviceAccelerationCombinedCollection.Count; i++)
{
var deviceAccelerationCombined = deviceAccelerationCombinedCollection[i];
var deviceAccelerationCombinedFiltered = new DeviceAccelerationCombined
{
ID = deviceAccelerationCombined.ID,
AnswerRecordID = deviceAccelerationCombined.ID,
Index = deviceAccelerationCombined.Index,
Time = deviceAccelerationCombined.Time,
Acceleration = movingFilter.ComputeAverage(deviceAccelerationCombined.Acceleration)
};
deviceAccelerationCombinedFilteredCollection.Add(deviceAccelerationCombinedFiltered);
}
return(deviceAccelerationCombinedFilteredCollection);
}
public static IList <DeviceAccelerationCombined> CombineDeviceAcceleration(IList <DeviceAcceleration> deviceAccelerationCollection)
{
var deviceAccelerationCombinedCollection = new List <DeviceAccelerationCombined>();
for (int i = 0; i < deviceAccelerationCollection.Count; i++)
{
var deviceAcceleration = deviceAccelerationCollection[i];
var deviceAccelerationCombined = new DeviceAccelerationCombined
{
ID = deviceAcceleration.ID,
AnswerRecordID = deviceAcceleration.ID,
Index = deviceAcceleration.Index,
Time = deviceAcceleration.Time,
Acceleration = (float)Math.Sqrt(Math.Pow(deviceAcceleration.X, 2.0) + Math.Pow(deviceAcceleration.Y, 2.0) + Math.Pow(deviceAcceleration.Z, 2.0)),
};
deviceAccelerationCombinedCollection.Add(deviceAccelerationCombined);
}
return(deviceAccelerationCombinedCollection);
}
