[R] Help in R

[Ulrik Stervbo]

R can have a bit of a learning curve... There are several ways to achieve
your goal - depending on what you want:

test_df <- data.frame(Movie = letters, some.value = rnorm(26))

test_df$Movie[1:10]

test_df$Movie[sample(c(1:26), 10)]

test_df[sample(c(1:26), 10), ]

Do read a tutorial or two on R - "Introduction to R" as suggested by David
or something else - so you can explain the code above to yourself.

HTH
Ulrik

On Sun, 5 Nov 2017 at 19:38 David Winsemius <dwinsemius at comcast.net> wrote:

>
> > On Nov 5, 2017, at 9:28 AM, Ahsan Zahir via R-help <r-help at r-project.org>
> wrote:
> >
> >
> > Hey,
> >
> > I am a beginner in R.
> >
> > How do I read last 10 values from column- Movie, from a dataset?
>
> Some questions are so simple that they strongly suggest no prior effort at
> self-leanrning. In such cases the usual recommendation given at Rhelp is
> that you read an introductory text. Many of us used the "Introduction to R"
> that is shipped with every copy of R:
>
> https://cran.r-project.org/doc/manuals/r-release/R-intro.pdf
>
>
> >
> > Pls help.
> >
> > Sent from my iPhone
> >
> > ______________________________________________
> > R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> > 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.
>
> David Winsemius
> Alameda, CA, USA
>
> 'Any technology distinguishable from magic is insufficiently advanced.'
>  -Gehm's Corollary to Clarke's Third Law
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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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