Hi R-user, I have a problem regarding R.? How can I move my 2nd column into 1st column.? For example I have data as below: mydf <- data.frame(matrix(1:6, ncol = 2)) ?mydf ? X1 X2? ?1? ?4? ?2? ?5? ?3? ?6 I want move my 2nd column become like this: ? X1?? ?1? ?? ?2?? ?3?? ?4? ?5? ?6 Hope anyone can help me. Many thanks. Zuhri ? [[alternative HTML version deleted]]
On 9/9/19 7:19 PM, smart hendsome via R-help wrote:> Hi R-user, > I have a problem regarding R.? How can I move my 2nd column into 1st column.? For example I have data as below: > mydf <- data.frame(matrix(1:6, ncol = 2)) > ?mydf > ? X1 X2? ?1? ?4? ?2? ?5? ?3? ?6 > I want move my 2nd column become like this: > ? X1?? ?1? ?? ?2?? ?3?? ?4? ?5? ?6 > Hope anyone can help me. Many thanks. > > Zuhri > > [[alternative HTML version deleted]]I doubt that anyone can tell what your intentions are. You ahve posted in html and the mailserver does not interpret html code. So repost in plain text .... as the posting guide advises. -- David.> > ______________________________________________ > 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.
Hi Zuhri, Try: mydf<-mydf[,c(2,1)] You might be surprised. Jim On Tue, Sep 10, 2019 at 12:20 PM smart hendsome via R-help <r-help at r-project.org> wrote:> > Hi R-user, > I have a problem regarding R. How can I move my 2nd column into 1st column. For example I have data as below: > mydf <- data.frame(matrix(1:6, ncol = 2)) > mydf > X1 X2 1 4 2 5 3 6 > I want move my 2nd column become like this: > X1 1 2 3 4 5 6 > Hope anyone can help me. Many thanks. > > Zuhri > > [[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.
Or maybe use stack stack(mydf) Cheers Petr> -----Original Message----- > From: R-help <r-help-bounces at r-project.org> On Behalf Of Jim Lemon > Sent: Tuesday, September 10, 2019 6:34 AM > To: smart hendsome <putra_autumn86 at yahoo.com>; r-help mailing list <r- > help at r-project.org> > Subject: Re: [R] Moving 2nd column into 1st column using R > > Hi Zuhri, > Try: > > mydf<-mydf[,c(2,1)] > > You might be surprised. > > Jim > > On Tue, Sep 10, 2019 at 12:20 PM smart hendsome via R-help <r-help at r- > project.org> wrote: > > > > Hi R-user, > > I have a problem regarding R. How can I move my 2nd column into 1st > column. For example I have data as below: > > mydf <- data.frame(matrix(1:6, ncol = 2)) mydf > > X1 X2 1 4 2 5 3 6 > > I want move my 2nd column become like this: > > X1 1 2 3 4 5 6 > > Hope anyone can help me. Many thanks. > > > > Zuhri > > > > [[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. > > ______________________________________________ > 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.Osobn? ?daje: Informace o zpracov?n? a ochran? osobn?ch ?daj? obchodn?ch partner? PRECHEZA a.s. jsou zve?ejn?ny na: https://www.precheza.cz/zasady-ochrany-osobnich-udaju/ | Information about processing and protection of business partner?s personal data are available on website: https://www.precheza.cz/en/personal-data-protection-principles/ D?v?rnost: Tento e-mail a jak?koliv k n?mu p?ipojen? dokumenty jsou d?v?rn? a podl?haj? tomuto pr?vn? z?vazn?mu prohl??en? o vylou?en? odpov?dnosti: https://www.precheza.cz/01-dovetek/ | This email and any documents attached to it may be confidential and are subject to the legally binding disclaimer: https://www.precheza.cz/en/01-disclaimer/
Martin Møller Skarbiniks Pedersen
2019-Sep-11 12:36 UTC
[R] Moving 2nd column into 1st column using R
On Tue, 10 Sep 2019 at 04:20, smart hendsome via R-help < r-help at r-project.org> wrote:> > Hi R-user, > I have a problem regarding R. How can I move my 2nd column into 1stcolumn. For example I have data as below:> mydf <- data.frame(matrix(1:6, ncol = 2)) > mydf > X1 X2 1 4 2 5 3 6 > I want move my 2nd column become like this: > X1 1 2 3 4 5 6 > Hope anyone can help me. Many thanks.I am not sure I understand your problem, but try: mydf <- data.frame(matrix(1:6, ncol = 2, byrow = TRUE)) Regards Martin [[alternative HTML version deleted]]