There is R code for Holt-Winters exponential smoothing in Janacek, Gareth (2000). Practical Time Series. London: Arnould Publishers. See also http://www.mth.uea.ac.uk/h200/tsbook/ It would be nice if the ts library could include this code (this way, it would be packaged with the other time series functions in ts). Best regards, Francisco. -- _ _ (o- Francisco Cribari-Neto -o) //\ Dept. de Estatistica, Univ. Federal de Pernambuco /\\ .v_/_....................................................._\_v. / Phone: (+55-81) 3271-8420 Fax: (+55-81) 3271-8422 \ : Email: cribari at de.ufpe.br Web: www.de.ufpe.br/~cribari : : : : Linux: more Unix than Unix. http://www.linux.org : \.............................................................../ -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-help-request at stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._