# season

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R package to run seasonal analyses in time series. For details see our book "Analysing Seasonal Health Data" (2010) https://www.springer.com/gp/book/9783642107474.

Useful functions are:
* `casecross` for case-crossover analysis 
* `nscosinor` to estimate non-stationary seasonal patterns using the Kalman filter
* `nonlintest` for a time domain test of non-linearity 
