R: [R] retrieve rows from frame assuming criterion

[Guazzetti Stefano]

Assuming your data.frame is called "data"

data[data$PUNTAR==c("IX49","IX48"),]

is probably what you want

Stefano



> -----Messaggio originale-----
> Da: Luis Rideau Cruz [mailto:Luisr at frs.fo]
> Inviato: venerdì 23 luglio 2004 15.37
> A: r-help at stat.math.ethz.ch
> Oggetto: [R] retrieve rows from frame assuming criterion
> 
> 
> Hi all,
> 
> I have a data frame in which one column(PUNTAR) is of character type.
> What I want is to retrieve is the frame but only with those 
> rows matching elements of PUNTAR with a list characters (e.g 
> c("IX49","IX48") )
> 
> Year    TUR  STODNR   PUNTAR
> 1994  9412 94020061     IX49
> 1994  9412 94020062     IX48
> 1994  9412 94020063      X32
> 1994  9412 94020065      X23
> 1994  9412 94020066      X27
> 1994  9412 94020067     XI19
> 1994  9412 94020068     XI16
> 1994  9412 94020069     XI14
> 1994  9412 94020070      XI8
> 1994  9412 94020071      X25
> 1994  9412 94020072      X18
> 1994  9412 94020073     II23
> 1994  9412 94020074    XII33
> 1994  9412 94020075    XII31
> 
> "my.function"("frame") should be then equal to 
> 
> Year TURNR   STODNR M_PUNTAR
> 1994  9412 94020061     IX49
> 1994  9412 94020062     IX48
> 
> Thank you in advance
> 
> 
> Luis Ridao Cruz
> Fiskirannsóknarstovan
> Nóatún 1
> P.O. Box 3051
> FR-110 Tórshavn
> Faroe Islands
> Phone:             +298 353900
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> 
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