Message-ID: <BANLkTi=TiO9e-bq9OywYCPpUfrE82haVoA@mail.gmail.com>
Date: 2011-06-02T00:03:43Z
From: Henrique Dallazuanna
Subject: subsetting with condition
In-Reply-To: <1306969256882-3567193.post@n4.nabble.com>
Try this:
subset(x, ave(x$ID, x$Pol., FUN = length) >= 3)
On Wed, Jun 1, 2011 at 8:00 PM, kristina p <puzarina.k at gmail.com> wrote:
> Dear R Team,
>
> I am a new R user and I am currently trying to subset my data under a
> special condition. I have went through several pages of the subsetting
> section here on the forum, but I was not able to find an answer.
>
> My data is as follows:
>
> ?ID ? ? ? ? ? ? ? ? ? ? ?NAME ? ? ? MS ? ? Pol. Party
> 1 ? ? ? ? ? ? ? ? ? ? ? ? ? John ? ? ? x ? ? ? F
> 2 ? ? ? ? ? ? ? ? ? ? ? ? ? Mary ? ? ? s ? ? ? S
> 3 ? ? ? ? ? ? ? ? ? ? ? ? ? Katie ? ? ?x ? ? ? O
> 4 ? ? ? ? ? ? ? ? ? ? ? ? ? Sarah ? ? ?p ? ? ? L
> 5 ? ? ? ? ? ? ? ? ? ? ? ? ? Martin ? ? ?x ? ? ?O
> 6 ? ? ? ? ? ? ? ? ? ? ? ? ? Angelika ? x ? ? ?F
> 7 ? ? ? ? ? ? ? ? ? ? ? ? ? ?Smith ? ? ?x ? ? ?O
> ....
>
> I am intested in only those observations, where there are at least three
> members of 1 political party. That is, I need to throw out all cases in the
> example above, except for members of party "O".
>
> Would really appreciate your help.
> K
>
> --
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>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
--
Henrique Dallazuanna
Curitiba-Paran?-Brasil
25? 25' 40" S 49? 16' 22" O