Thanks for the help Jim.
As a new user and member of this mailing list, I'm very impressed with all
the support!
Jay
On Sat, Oct 23, 2010 at 10:21 PM, jim holtman <jholt...@gmail.com> wrote:
> Need to understand how 'indexing' is done in R:
>
> > x <- read.table(textConnection(" Price
> + 2010-10-11 99
> + 2010-10-12 101
> + 2010-10-13 102
> + 2010-10-14 103
> + 2010-10-15 99
> + 2010-10-18 98
> + 2010-10-19 97
> + 2010-10-20 101
> + 2010-10-21 101
> + 2010-10-22 101"), header = TRUE)
> > closeAllConnections()
> > x
> Price
> 2010-10-11 99
> 2010-10-12 101
> 2010-10-13 102
> 2010-10-14 103
> 2010-10-15 99
> 2010-10-18 98
> 2010-10-19 97
> 2010-10-20 101
> 2010-10-21 101
> 2010-10-22 101
> > x[x$Price > 100,, drop = FALSE]
> Price
> 2010-10-12 101
> 2010-10-13 102
> 2010-10-14 103
> 2010-10-20 101
> 2010-10-21 101
> 2010-10-22 101
> >
>
>
> On Sat, Oct 23, 2010 at 9:56 PM, Jason Kwok <jayk...@gmail.com> wrote:
> > Price
> > 2010-10-11 99
> > 2010-10-12 101
> > 2010-10-13 102
> > 2010-10-14 103
> > 2010-10-15 99
> > 2010-10-18 98
> > 2010-10-19 97
> > 2010-10-20 101
> > 2010-10-21 101
> > 2010-10-22 101
> >
> > I have this dataset and I only want to return instances when the Price is
> >
> > 100.
> >
> > If I use the code: Price > 100 then it will evaluate each entry as "TRUE"
> or
> > "FALSE". What is the code to only return "TRUE" results?
> >
> > Thanks,
> >
> > Jay
> >
> > [[alternative HTML version deleted]]
> >
> > ______________________________________________
> > 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.
> >
>
>
>
> --
> Jim Holtman
> Cincinnati, OH
> +1 513 646 9390
>
> What is the problem that you are trying to solve?
>
[[alternative HTML version deleted]]
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and provide commented, minimal, self-contained, reproducible code.
