Hi,
 
There's probably an easier or more readable way to do it, but:
df <- data.frame(cbind(letters, var= runif(26, 2, 3)))
df[df$letters[grep("[G]", df$letters, ignore.case=TRUE)],]

Cheers!!
Albert-Jan

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All right, but apart from the sanitation, the medicine, education, wine, public order, irrigation, roads, a fresh water system, and public health, what have the Romans ever done for us?
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--- On Wed, 4/28/10, Alexis Champsaur <alexis.champsaur@gmail.com> wrote:


From: Alexis Champsaur <alexis.champsaur@gmail.com>
Subject: [R] Selecting rows based on contents of string
To: r-help@stat.math.ethz.ch
Date: Wednesday, April 28, 2010, 1:49 AM


Hi there,
I have a data frame with a column named "Flags", whose contents are strings
containing any of the following characters, multiple characters allowed:
A,B,C,D,E,F,G.

Here is the head:
    GeocodeID PlaceID CountyCode CBSACode StateProvCode PropertyTypeGroupID
Flags
1           0       0                0            0
AK                   1                              ABC
2           0       0                0            0
AK                   2                              AC
3           0       0                0            0
AK                   3                              BC
4           0       0                0            0
AK                   4                              CD
5           0       0                0            0
AK                  14                             CD
6           0       0                0            0
AK                  15                             ACDE
7           0       0                0            0
AL                   1

I want to select only the rows whose "Flag" element contains the character
G. Is there a simple way to do this, or should I perhaps come up with a
different system of flags, which is totally up to me?

Thanks,

Alex

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