Hi,

What you are after is:

datasubset <- dataset[ dataset[,3] == "text3", ]

Equivalently, you can use:

datasubset <- subset(dataset, subset = dataset[,3] == "text3")

HTH,

Francisco

On Tue, Mar 15, 2011 at 3:09 PM, e-letter <inpost@gmail.com> wrote:

> Readers,
>
> For a data set:
>
> text1,23,text2,45
> text1,23,text3,78
> text1,23,text3,56
> text1,23,text2,45
>
> The following command was entered:
>
> datasubset<-data.frame(dataset[,3]=="text3")
>
> The result of
>
> datasubset
>
> is
>
> TRUE
> TRUE
>
> The required result is
>
> text1,23,text3,78
> text1,23,text3,56
>
> What is the correct command to use please?
>
> Thanks in advance.
>
> ______________________________________________
> R-help@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.
>

	[[alternative HTML version deleted]]

