Claordina, For 1), do one (or more) of the following: a) read section 22.3 of the user's guide, b) see Help\Command reference\adf in the GUI, c) type 'help adf' in the console window (without the quotes). For 2), why do you want to maximize the t-values? PS ________________________________________ From: gretl-users-bounces(a)lists.wfu.edu [gretl-users-bounces(a)lists.wfu.edu] on behalf of clarodina(a)lycos.com [clarodina(a)lycos.com] Sent: Wednesday, December 21, 2011 2:24 AM To: gretl-users(a)lists.wfu.edu Subject: [Gretl-users] Optimization Hi, 1) Doing a adf 0 y --ct --verbose, there is a time coefficient on the output What is this time coefficient? 2) Does gretl allow doing regression with optimization of some condition? Have 6 data D1 to D6 Want to regress D1 against D2 to D6 Do a adf on the $yhat and have t value Want to have the coefficients of D2 to D6 MAXIMISING the t value Try seraching the manual on the 2) Claordina _______________________________________________ Gretl-users mailing list Gretl-users(a)lists.wfu.edu http://lists.wfu.edu/mailman/listinfo/gretl-users