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. 

		
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