Liaw, Andy
2005-Mar-13 19:11 UTC
[R] any book and tutorial about how to manipulate data with R /S+
> From: Wensui Liu > > I am sorry that I did not state my question clearly. > > What I mean by data manipulation includes sort, merge, aggregate, > transpose,R has functions for doing those: sort(), merge(), aggregate(), and t(), respectively.> data export and import, format, date & time handle, and so > on,As others have pointed out, R comes with a manual on data import/export. There are articles in the R News that discuss date/time. Not sure what you mean by `format'.> which might be not important to statistician.I beg to differ: Not too many statisticians (that I know of anyway) have the luxury of having data formatted and served on a silver platter for analysis.> 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.Let's see: I've been working at a pharmaceutical company for over five years now, and I can count the number of times I've used SAS during that period on one hand (and can't recall when was the last time). I do data manipulation all the time (mostly with R). Just last week I wrote a three-line function in R to read and parse a data file that's not in rectangular table format (so read.table and friends can't be used), while a colleague of mine tried to figure out how to do the same with Perl. All the tasks you specified can be done in any number of packages/languages, some easier than others. I'd say R is one of the easiest, but that does require that you gain some familiarity with it. If you have specific questions, try search in the R-help archive, or if you can't find answer there, post the question here. Andy> > On Sat, 12 Mar 2005 15:34:06 +0100, Thomas Sch?nhoff > <tom_hoary at web.de> wrote: > > Hallo, > > > > Am Samstag, 12. M?rz 2005 15:08 schrieb Wensui Liu: > > > In real world, data manipulation might take even longer time and > > > more effort than statistical analysis and modeling. > > > > > > Does anyone know a good book and tutorial about data manupulation? > > > Thank you so much. > > > > Well, it would be much easier to meet your demands if you could give > > us an idea what you exactly looking for. > > Anyway, there are some recommendations in R-Manual regarding > > introduxtory materials on doing statistics in R. If I remember > > correctly there are also some advices on r-cran.org in the generell > > FAQ. > > If you're looking for some introductory stuff doing data > manipulation > > in R the book of Peter Dalgaard, Introductory Statistics with R > > should be taken into consideration. > > Not long time ago there was a similar question to this list, giving > > the whole range of available books on statistics in S/R . > Have a look > > at http://maths.newcastle.edu.au/~rking/R/, you'll will be > > overwhelmed. > > Last but not least, if you look at r-cran website you'll find in > > contributed section some case-oriented tutorials, i.e. data > mining or > > similar stuff! > > > > regards > > > > Thomas > > > > ______________________________________________ > > R-help at 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 > > > > > -- > WenSui Liu, MS MA > Senior Decision Support Analyst > Division of Health Policy and Clinical Effectiveness > > ______________________________________________ > R-help at 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 > > >
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