Thank you again! You've helped me a lot! . regards
2014-02-23 20:13 GMT-06:00 Allin Cottrell <cottrell(a)wfu.edu>:
 On Sun, 23 Feb 2014, Salvador Rodriguez wrote:
 > Thanks for taking the time to answer! has clarified the big question I
 had,
 > have any recommendations of software which allows to generate a series
 > arima model for weekly data?
 There's no problem with estimating an ARIMA model on weekly data in
 gretl, and you can even have a "seasonal" component (though
 estimation may take a while). It's just that there's no standard
 way of carrying out seasonal adjustment of weekly series.
 Allin Cottrell
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