public AgresivityCalculator(StatisticsRepository repository, UserContextViewModel userContext)
 {
     _accelerations = new List<AccelerometerReading>();
     _repository = repository;
     _userContext = userContext; 
 }
 public StatisticsViewModel(StatisticsRepository statisticsRepository, UserContextViewModel userContext)
 {
     _statisticsRepository = statisticsRepository;
     _userContext = userContext;
 }