On 12 March 2005 at 15:42, Wensui Liu wrote: | I am sorry that I did not state my question clearly. | | What I mean by data manipulation includes sort, merge, aggregate, | transpose, data export and import, format, date & time handle, and so | on, which might be not important to statistician.
R excels at all of those, and it comes with five manuals one of which is dedicated to data input/output. How to manipulate data once you have it loaded is covered in the intro document and many of the other documents that are available on the web or in a fine library or bookstore near you. | I have use SAS and SPSS for a while and really want to use R as an | alternative computing system. Unless R/S+ can provide strong | functionality in data manipulation as SAS does, it is hard to compete | with SAS in business rather than in academic. You will find a variety of documents discussing exactly that. You could start with Frank Harrell's website. Hth, Dirk -- Better to have an approximate answer to the right question than a precise answer to the wrong question. -- John Tukey as quoted by John Chambers ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
