Re: [R] fortune candidate

2017-12-17 Thread Achim Zeileis
On Sun, 17 Dec 2017, J C Nash wrote: From Dirk E. on the R-devel list Many things a developer / power-user would do are very difficult on Windows. It is one of the charms of the platform. On the other hand you do get a few solitaire games so I guess everybody is happy. Thanks, added to the d

[R] fortune candidate

2017-12-17 Thread J C Nash
>From Dirk E. on the R-devel list > Many things a developer / power-user would do are very difficult on > Windows. It is one of the charms of the platform. On the other hand you do > get a few solitaire games so I guess everybody is happy. JN __ R-hel

Re: [R] Auto Data in the ISLR Package

2017-12-17 Thread AbouEl-Makarim Aboueissa
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 wrote: > myAuto <- Auto[ grep("ford|toyota",Auto$name),] > m

Re: [R] Auto Data in the ISLR Package

2017-12-17 Thread Eric Berger
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: > > T

Re: [R] Auto Data in the ISLR Package

2017-12-17 Thread AbouEl-Makarim Aboueissa
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* *Profess

Re: [R] Auto Data in the ISLR Package

2017-12-17 Thread Eric Berger
Hi Peter, I looked at the Auto data frame and tested before I sent my reply. The entries in the "name" column are actually models, such as > head(Auto$name) [1] chevrolet chevelle malibu buick skylark 320 plymouth satellite amc rebel sst [5] ford torino ford galaxie 500

Re: [R] Auto Data in the ISLR Package

2017-12-17 Thread peter dalgaard
That probably works in this case, but it would cause grief if another car make had "ford" somewhere inside its name e.g. "bedford". Safer general practice is Auto[Auto$name %in% c("ford", "toyota"),] or similar using subset(). -pd > On 17 Dec 2017, at 09:10 , Eric Berger wrote: > > myAuto <

Re: [R] Auto Data in the ISLR Package

2017-12-17 Thread Eric Berger
myAuto <- Auto[ grep("ford|toyota",Auto$name),] On Sat, Dec 16, 2017 at 10:28 PM, Bert Gunter 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 > > Alternat