[R-sig-Debian] littler usage

Dirk Eddelbuettel edd at debian.org
Sun Nov 18 00:18:39 CET 2007


On 17 November 2007 at 16:12, Sebastian P. Luque wrote:
| On Sat, 17 Nov 2007 15:47:42 -0600,
| Dirk Eddelbuettel <edd at debian.org> wrote:
| 
| [...]
| 
| > You're almost there -- just use 'as.numeric' on ss too:
| 
| > edd at ron:~> cat /tmp/seb.r #!/usr/bin/env r
| 
| > ff <- as.numeric(argv[1])
| > ss <- as.numeric(argv[2])
| > print(ff * ss)
| > edd at ron:~> /tmp/seb.r 2 3
| > [1] 6
| > edd at ron:~>
| 
| Thanks Dirk!  However, I'm trying to pass several numbers as a single
| argument, which should be turned into a numeric vector, and doing
| as.numeric() fails:
| 
| $ r littler_ex.R 14 '3, 2'
| [1] NA

No different from splittin a string in R, ie strsplit and do.call("rbind")
should do.

Gotta run,   Dirk

| ,-----[ cat ~/scripts/R/littler_ex.R ]
| | ff <- as.numeric(argv[1])
| | ss <- as.numeric(argv[2])
| | print(ff * ss)
| `-----
| 
| I know I could simply pass each number as a separate arg, but I already
| have 6 args to handle.  I didn't find an example for this situation in the
| examples.  Thanks.
| 
| 
| -- 
| Seb
| 
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