[R] Subsetting a dataframe

[Simon Fear]

Or 

subset(nameofdataset, subject %in% c(15,19))

which does "the right thing" if subject should be missing (unlikely in
this
example I know, but likely to be a different story if conditioning on
concentration, say).

A pity subset() and transform() are not mentioned in the subsetting
section
of the "Introduction to R" manual - a suggestion for future releases?
 

Simon Fear
Senior Statistician
Syne qua non Ltd
Tel: +44 (0) 1379 644449
Fax: +44 (0) 1379 644445
email: Simon.Fear at synequanon.com
web: http://www.synequanon.com
 
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