Re: [R] Sorting / editing a table

From: Daniel Malter <daniel_at_umd.edu>
Date: Thu, 10 Jul 2008 03:36:58 -0700 (PDT)

Type

?ifelse

in the R prompt and hit enter

you will have to put the yes (or the no) in " " in your ifelse command.

Best,
Daniel

Jörg Groß wrote:
>
> Hi,
>
> I have a problem sorting a table;
>
> When I read a table into R by x <- read.table() I get something like
> this:
>
> V1 V2 V3
> yes 1 3
> no 2 6
> yes 3 9
> no 4 12
>
> Now I want to generate a vector of V2.
> But R should only put in the numbers of V2 into the new vector when
> there is the entry "yes" in V1.
>
> How can I realize that?
>
> Thanks for help. I am getting crazy trying to solve that ...
>
> ______________________________________________
> R-help_at_r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>
>

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Received on Thu 10 Jul 2008 - 10:43:47 GMT

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