[R] Is this a correct forum to discuss basic R problem?

[ONKELINX, Thierry]

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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

Thierry.Onkelinx op inbo.be

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: r-help-bounces op stat.math.ethz.ch
[mailto:r-help-bounces op stat.math.ethz.ch] Namens d. sarthi maheshwari
Verzonden: woensdag 14 februari 2007 11:41
Aan: r-help op stat.math.ethz.ch
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

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