[R] Splitting vector into individual elements

Peter Dalgaard p.dalgaard at biostat.ku.dk
Wed Sep 15 23:05:38 CEST 2004


Paul Roebuck <roebuck at odin.mdacc.tmc.edu> writes:

> Is there a means to split a vector into its individual
> elements without going the brute-force route for arguments
> to a predefined function call?
> 
>     offred.rgb <- c(1, 0, 0) * 0.60;
> 
>     ## Brute force style
>     offred.col <- rgb(offred.rgb[1],
>                       offred.rgb[2],
>                       offred.rgb[3],
>                       names = "offred")
>     ## Desired style
>     offred.col <- rgb(silver.bullet(offred.rgb),
>                       names = "offred")

The closest is probably this:

offred.col <- do.call("rgb", c(as.list(offred.rgb), 
                               list(names="offred")))

(ever read/seen The Handmaid's Tale, btw?)

-- 
   O__  ---- Peter Dalgaard             Blegdamsvej 3  
  c/ /'_ --- Dept. of Biostatistics     2200 Cph. N   
 (*) \(*) -- University of Copenhagen   Denmark      Ph: (+45) 35327918
~~~~~~~~~~ - (p.dalgaard at biostat.ku.dk)             FAX: (+45) 35327907




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