myAuto <- Auto[ grep("ford|toyota",Auto$name),]
myAuto$Make <- NA
myAuto$Make[grep("ford",myAuto$name)] <- "Ford"
myAuto$Make[grep("toyota",myAuto$name)] <- "Toyota"
Regards,
Eric
On Sun, Dec 17, 2017 at 11:58 AM, AbouEl-Makarim Aboueissa <
abouelmakarim1...@gmail.com> wrote:
> Dear Eric:
>
> Thank you very much. It works nicely.
>
> *Just one more thing;* how to create a new variable (say, *Make*) with *Make
> = Ford* for the ford brand and *Make = T**oyota* for the toyota brand.
>
> Once again thank you all.
>
> abou
>
> ______________________
>
>
> *AbouEl-Makarim Aboueissa, PhD*
>
> *Professor of Statistics*
>
> *Department of Mathematics and Statistics*
> *University of Southern Maine*
>
>
> On Sun, Dec 17, 2017 at 3:10 AM, Eric Berger <ericjber...@gmail.com>
> wrote:
>
>> myAuto <- Auto[ grep("ford|toyota",Auto$name),]
>>
>>
>>
>> On Sat, Dec 16, 2017 at 10:28 PM, Bert Gunter <bgunter.4...@gmail.com>
>> wrote:
>>
>>> I did not care to load the packages -- small reproducible examples are
>>> preferable, as the posting guide suggests.
>>>
>>> But, if I have understood correctly:
>>>
>>> See, e.g. ?subset
>>>
>>> Alternatively, you can read up on indexing data frames in any good basic
>>> R
>>> tutorial.
>>>
>>> Cheers,
>>> Bert
>>>
>>> Bert Gunter
>>>
>>> "The trouble with having an open mind is that people keep coming along
>>> and
>>> sticking things into it."
>>> -- Opus (aka Berkeley Breathed in his "Bloom County" comic strip )
>>>
>>> On Sat, Dec 16, 2017 at 11:44 AM, AbouEl-Makarim Aboueissa <
>>> abouelmakarim1...@gmail.com> wrote:
>>>
>>> > Dear All:
>>> >
>>> > I would like to create a subset data set *with only* all Ford and all
>>> > Toyota cars from the Auto data set in ISLR R Package. Thank you very
>>> much
>>> > in advance.
>>> >
>>> > Please use the following code to see how is the data look like.
>>> >
>>> >
>>> > install.packages("ISLR")
>>> > library(ISLR)
>>> > data(Auto)
>>> > head(Auto)
>>> >
>>> >
>>> > with many thanks
>>> > abou
>>> > ______________________
>>> >
>>> >
>>> > *AbouEl-Makarim Aboueissa, PhD*
>>> >
>>> > *Professor of Statistics*
>>> >
>>> > *Department of Mathematics and Statistics*
>>> > *University of Southern Maine*
>>> >
>>> > [[alternative HTML version deleted]]
>>> >
>>> > ______________________________________________
>>> > R-help@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@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/posti
>>> ng-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>>
>>
>>
>
[[alternative HTML version deleted]]
______________________________________________
R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
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