Dear R-helpers, I am working with a time series data set of 1000 observations and I am runnig several models on it. I divided the sample in three sets: estimation [1:700], validation, [701:990] and test [991:1000]. Now I was wondering if there is a more elegant way to do this. Are you aware of a standard approach using R functions? Or if you could just suggest me some references I would really appreaciate it. Thansk a lot in advance. Regards, J. --------------------------------- [[alternative HTML version deleted]]