[Gretl-users] Interrupted time series

To clarify my initial question regarding performing an interrupted time series analysis, I'm looking at time series data before during and after an intervention to see if the intervention resulted in a change to the data. Based on visual inspection of the time series plot there is a large change in the level and a trend change through out the time series. I'm attempting to do something like what is described in the following reference:Elligsen, M., Walker, S. A. N., Pinto, R. Infect Control Hospital Epidemiol 2012;33(4):354-361 Thank you for your assistance Michael Ott Sent from my iPhone