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ir. Thierry Onkelinx Instituut voor natuur- en bosonderzoek / Reseach Institute for Nature and Forest Cel biometrie, methodologie en kwaliteitszorg / Section biometrics, methodology and quality assurance Gaverstraat 4 9500 Geraardsbergen Belgium tel. + 32 54/436 185 [EMAIL PROTECTED] www.inbo.be Do not put your faith in what statistics say until you have carefully considered what they do not say. ~William W. Watt A statistical analysis, properly conducted, is a delicate dissection of uncertainties, a surgery of suppositions. ~M.J.Moroney -----Oorspronkelijk bericht----- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Namens d. sarthi maheshwari Verzonden: woensdag 14 februari 2007 11:41 Aan: [email protected] Onderwerp: [R] Is this a correct forum to discuss basic R problem? Hi Sorry if this is a wrong post in the forum. Please suggest if this is a correct forum to discuss R related basic problem. I wanted to perform the following task by using R: e.g. input data.frame x y ============ a 10 b 20 a 10 a 10 b 15 b 15 b 20 In o/p i need x y ========= a 30 b 70 Currently i am storing the data.frame as a database table by using sqlSave. Then I am retrieving the data using sqlQuery command. In the query I am using Group by function of SQL. is there any smarter way to this in R? -- thanks Sar [[alternative HTML version deleted]] ______________________________________________ [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 and provide commented, minimal, self-contained, reproducible code. ______________________________________________ [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 and provide commented, minimal, self-contained, reproducible code.
