Subject: [R] From S-Plus to R From: stefan.albrecht@allianz.com Date: Tue, 16 Nov 2004 10:52:19 +0100 To: r-help@stat.math.ethz.ch CC: braud@lyon.cemagref.fr Dear Isabelle, for most of my work I have switched from S-Plus to R, because it is easier to make scripts with due to the better documentation and some other more reasonable implementations. And there was also a cost issue with the S-Plus Server, which is not for free at all. In R I use the its package for time series, which is quite sufficient for my needs. The only problem I encountered was with computing time. So I use R matrixes as long as possible and not the its (S4) objects, since this makes some commands very slow (like union). There are also other packages like zoo, tsseries (I guess) and certainly Rmetrics, which should have all you need Most functions transform directely and easily. Among others, I missed the numRows() and numCols() etc in R, but this can be redone quickly. One big advantage of S-Plus is the possibility to edit graphics and to make Powerpoints presentations very quickly. Also the Excel interface is already build in. In R you must always programm to whole picture, which is ok if you are doing the same task often. Best regards, Stefan ------------------------------------------------------- Dr. Stefan Albrecht, CFA Allianz Private Equity Partners GmbH Giselastrasse 4 D-80802 Munich, Germany Phone +49.89.38 00 - 18 317 Fax +49.89.38 00 - 818 317 Dear collegues, I am using S-Plus for many years and is thinking of moving to R. In the FAQ I did not manage to find an answer to the following questions: Is it easy to move and transform functions, written under S-plus to functions under R? Furthermore, S-Plus has interesting functions to deal with regular and irregular times series (rts, its, ts.plot, ts.lines, ts.points, aggregate.rts, etc..) and the possibility to plot, on the same graphic, regular time series with different frequencies and even irregular time series. Is it still possible in R? Thanks in advance for your answers. Best wishes Isabelle Braud *************************************************************** Isabelle BRAUD Chargée de recherche au LTHE-Grenoble/CEMAGREF-Lyon CEMAGREF Unité de Recherche Hydrologie-Hydraulique 3 bis, Quai Chauveau, CP 220 69336 Lyon Cedex 9 Tel: 04 72 20 87 78 (from abroad 33 4 72 20 87 78) Fax: 04 78 47 78 75 (from abroad 33 4 78 47 78 75) E-mail: braud at lyon.cemagref.fr ou Isabelle.Braud at hmg.inpg.fr [[alternative HTML version deleted]] ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html