[R] Subsetting from data.frame

[Uwe Ligges]

Christian Schulz wrote:
> 
> Hi,
> 
> attach(data)
> 
> if (TREUE[TREUE ==11] && EMPFEHL[EMPFEHL < 11])
> { TREUE <- EMPFEHL }
> 
> what's wrong ( TREUE ==EMPFEHL works not,too )?
> 
> many thanks & regards,Christian

Neither if() nor "&&" works vectorized, use ifelse() and "&" instead
(see the help pages for details).

Uwe Ligges
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