Dear Eric: Many Thanks
abou ______________________ *AbouEl-Makarim Aboueissa, PhD* *Professor of Statistics* *Department of Mathematics and Statistics* *University of Southern Maine* On Sun, Dec 17, 2017 at 5:25 AM, Eric Berger <ericjber...@gmail.com> wrote: > 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 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.