[R] Help in R

[Rui Barradas]

Hello,

Also

tail(test_df$Movie, 10)

Hope this helps,

Rui Barradas

Em 05-11-2017 19:18, Ulrik Stervbo escreveu:
> 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.
>>
>
> 	[[alternative HTML version deleted]]
>
> ______________________________________________
> 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.
>