Hello, I am a student of Doctorate in Econometrics from the Basque Country University. I know Gretl since 2004 (when I studied Economics degree) and, at present, I use Gretl in my investigation (time series analysis) because I find it enough easy and useful. Thanks to all you, especially to its creator, Allin Cottrell. Sincerely you Javi --------------------------------- LLama Gratis a cualquier PC del Mundo. Llamadas a fijos y móviles desde 1 céntimo por minuto. http://es.voice.yahoo.com