Message-ID: <16443.5204.413726.233082@gargle.gargle.HOWL>
Date: 2004-02-24T09:07:32Z
From: Martin Maechler
Subject: would be nice ...
In-Reply-To: <D4389EED-66A6-11D8-8997-000A95A67E82@stat.ucla.edu>
>>>>> "Jan" == Jan de Leeuw <deleeuw at stat.ucla.edu>
>>>>> on Tue, 24 Feb 2004 00:52:51 -0800 writes:
Jan> if R had something like
>> python -c "print(sum([1,2,3]));print(3*2)"
Jan> 6 6
Jan> but I guess the only way to do this is by writing the
Jan> string to a tmp file and then doing something like "R
Jan> CMD BATCH --quiet" on the tmp file
Well, a bit better (with a shell prompt "%") is
% echo "print(sum(c(1,2,3)));print(3*2)" | R --quiet --vanilla
> print(sum(c(1,2,3)));print(3*2)
[1] 6
[1] 6
>
or (slightly nicer)
% echo "sum(c(1,2,3)); 3*2" | R --quiet --vanilla
> sum(c(1,2,3)); 3*2
[1] 6
[1] 6
>
but it still echoes the input by default
Jan> I would like to use this for an R service, which allows
Jan> you to select any string in any application and replace
Jan> it by its R evaluation