On 21/04/2009 8:52 PM, Gundala Viswanath wrote:
Dear all,
I have a data frame that looks like this:
dat
V1 V2 V3
1 0.000 2 554889
2 2.001 0 9978
3 0.342 3 5263
4 123.000 0 3209
5 0.004 0 2434
I want to get a subset of that data frame where
the entry in V1 has (x.000) as its decimal.
yielding
wanted_dat
V1 V2 V3
1 0.000 2 554889
2 123.000 0 3209
What's the way to do it in R?
- Gundala Viswanath
Jakarta - Indonesia
If you know that those values are really integers, you could use
dat[ dat$V1 == round(dat$V1), ]
but if you just want the printed version to have three zeroes after the
decimal point, you'll want something with grep, e.g.
dat[ grep("[.]000$", format(dat$V1)), ]
(These are both untested.)
Duncan Murdoch
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