Hi, If I load 2 packages that have a function with the same name, how do I tell R to run one or the other? (Instead of having R automatically use the first- or last-loaded one, whichever it is. (Which is it, by the way.)) Cheers! Nick -- ===================================================Nicholas J. Matzke Ph.D. Candidate, Graduate Student Researcher Huelsenbeck Lab Center for Theoretical Evolutionary Genomics 4151 VLSB (Valley Life Sciences Building) Department of Integrative Biology University of California, Berkeley Graduate Student Instructor, IB200B Principles of Phylogenetics: Ecology and Evolution http://ib.berkeley.edu/courses/ib200b/ http://phylo.wikidot.com/ Lab websites: http://ib.berkeley.edu/people/lab_detail.php?lab=54 http://fisher.berkeley.edu/cteg/hlab.html Dept. personal page: http://ib.berkeley.edu/people/students/person_detail.php?person=370 Lab personal page: http://fisher.berkeley.edu/cteg/members/matzke.html Lab phone: 510-643-6299 Dept. fax: 510-643-6264 Cell phone: 510-301-0179 Email: matzke at berkeley.edu Mailing address: Department of Integrative Biology 3060 VLSB #3140 Berkeley, CA 94720-3140 ----------------------------------------------------- "[W]hen people thought the earth was flat, they were wrong. When people thought the earth was spherical, they were wrong. But if you think that thinking the earth is spherical is just as wrong as thinking the earth is flat, then your view is wronger than both of them put together." Isaac Asimov (1989). "The Relativity of Wrong." The Skeptical Inquirer, 14(1), 35-44. Fall 1989. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
Is it not something like? package1::myfunction package2::myfunction On Wednesday, May 18, 2011 at 9:02 PM, Nick Matzke wrote:> Hi, > > If I load 2 packages that have a function with the same > name, how do I tell R to run one or the other? > > (Instead of having R automatically use the first- or > last-loaded one, whichever it is. (Which is it, by the way.)) > > Cheers! > Nick > > > -- > ===================================================> Nicholas J. Matzke > Ph.D. Candidate, Graduate Student Researcher > > Huelsenbeck Lab > Center for Theoretical Evolutionary Genomics > 4151 VLSB (Valley Life Sciences Building) > Department of Integrative Biology > University of California, Berkeley > > Graduate Student Instructor, IB200B > Principles of Phylogenetics: Ecology and Evolution > http://ib.berkeley.edu/courses/ib200b/ > http://phylo.wikidot.com/ > > > Lab websites: > http://ib.berkeley.edu/people/lab_detail.php?lab=54 > http://fisher.berkeley.edu/cteg/hlab.html > Dept. personal page: > http://ib.berkeley.edu/people/students/person_detail.php?person=370 > Lab personal page: > http://fisher.berkeley.edu/cteg/members/matzke.html > Lab phone: 510-643-6299 > Dept. fax: 510-643-6264 > > Cell phone: 510-301-0179 > Email: matzke@berkeley.edu > > Mailing address: > Department of Integrative Biology > 3060 VLSB #3140 > Berkeley, CA 94720-3140 > > ----------------------------------------------------- > "[W]hen people thought the earth was flat, they were wrong. > When people thought the earth was spherical, they were > wrong. But if you think that thinking the earth is spherical > is just as wrong as thinking the earth is flat, then your > view is wronger than both of them put together." > > Isaac Asimov (1989). "The Relativity of Wrong." The > Skeptical Inquirer, 14(1), 35-44. Fall 1989. > http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm > > ______________________________________________ > R-help@r-project.org mailing list > 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]]
Hi Nick, See ?"::" Best, Ista On Wed, May 18, 2011 at 10:02 PM, Nick Matzke <matzke at berkeley.edu> wrote:> Hi, > > If I load 2 packages that have a function with the same name, how do I tell > R to run one or the other? > > (Instead of having R automatically use the first- or last-loaded one, > whichever it is. ?(Which is it, by the way.)) > > Cheers! > Nick > > > -- > ===================================================> Nicholas J. Matzke > Ph.D. Candidate, Graduate Student Researcher > > Huelsenbeck Lab > Center for Theoretical Evolutionary Genomics > 4151 VLSB (Valley Life Sciences Building) > Department of Integrative Biology > University of California, Berkeley > > Graduate Student Instructor, IB200B > Principles of Phylogenetics: Ecology and Evolution > http://ib.berkeley.edu/courses/ib200b/ > http://phylo.wikidot.com/ > > > Lab websites: > http://ib.berkeley.edu/people/lab_detail.php?lab=54 > http://fisher.berkeley.edu/cteg/hlab.html > Dept. personal page: > http://ib.berkeley.edu/people/students/person_detail.php?person=370 > Lab personal page: http://fisher.berkeley.edu/cteg/members/matzke.html > Lab phone: 510-643-6299 > Dept. fax: 510-643-6264 > > Cell phone: 510-301-0179 > Email: matzke at berkeley.edu > > Mailing address: > Department of Integrative Biology > 3060 VLSB #3140 > Berkeley, CA 94720-3140 > > ----------------------------------------------------- > "[W]hen people thought the earth was flat, they were wrong. When people > thought the earth was spherical, they were wrong. But if you think that > thinking the earth is spherical is just as wrong as thinking the earth is > flat, then your view is wronger than both of them put together." > > Isaac Asimov (1989). "The Relativity of Wrong." The Skeptical Inquirer, > 14(1), 35-44. Fall 1989. > http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm > > ______________________________________________ > R-help at r-project.org mailing list > 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. >-- Ista Zahn Graduate student University of Rochester Department of Clinical and Social Psychology http://yourpsyche.org
Thanks!! Nick On 5/18/11 7:06 PM, Ista Zahn wrote:> Hi Nick, > See ?"::" > > Best, > Ista > > On Wed, May 18, 2011 at 10:02 PM, Nick Matzke<matzke at berkeley.edu> wrote: >> Hi, >> >> If I load 2 packages that have a function with the same name, how do I tell >> R to run one or the other? >> >> (Instead of having R automatically use the first- or last-loaded one, >> whichever it is. (Which is it, by the way.)) >> >> Cheers! >> Nick >> >> >> -- >> ===================================================>> Nicholas J. Matzke >> Ph.D. Candidate, Graduate Student Researcher >> >> Huelsenbeck Lab >> Center for Theoretical Evolutionary Genomics >> 4151 VLSB (Valley Life Sciences Building) >> Department of Integrative Biology >> University of California, Berkeley >> >> Graduate Student Instructor, IB200B >> Principles of Phylogenetics: Ecology and Evolution >> http://ib.berkeley.edu/courses/ib200b/ >> http://phylo.wikidot.com/ >> >> >> Lab websites: >> http://ib.berkeley.edu/people/lab_detail.php?lab=54 >> http://fisher.berkeley.edu/cteg/hlab.html >> Dept. personal page: >> http://ib.berkeley.edu/people/students/person_detail.php?person=370 >> Lab personal page: http://fisher.berkeley.edu/cteg/members/matzke.html >> Lab phone: 510-643-6299 >> Dept. fax: 510-643-6264 >> >> Cell phone: 510-301-0179 >> Email: matzke at berkeley.edu >> >> Mailing address: >> Department of Integrative Biology >> 3060 VLSB #3140 >> Berkeley, CA 94720-3140 >> >> ----------------------------------------------------- >> "[W]hen people thought the earth was flat, they were wrong. When people >> thought the earth was spherical, they were wrong. But if you think that >> thinking the earth is spherical is just as wrong as thinking the earth is >> flat, then your view is wronger than both of them put together." >> >> Isaac Asimov (1989). "The Relativity of Wrong." The Skeptical Inquirer, >> 14(1), 35-44. Fall 1989. >> http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm >> >> ______________________________________________ >> R-help at r-project.org mailing list >> 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. >> > > >-- ===================================================Nicholas J. Matzke Ph.D. Candidate, Graduate Student Researcher Huelsenbeck Lab Center for Theoretical Evolutionary Genomics 4151 VLSB (Valley Life Sciences Building) Department of Integrative Biology University of California, Berkeley Graduate Student Instructor, IB200B Principles of Phylogenetics: Ecology and Evolution http://ib.berkeley.edu/courses/ib200b/ http://phylo.wikidot.com/ Lab websites: http://ib.berkeley.edu/people/lab_detail.php?lab=54 http://fisher.berkeley.edu/cteg/hlab.html Dept. personal page: http://ib.berkeley.edu/people/students/person_detail.php?person=370 Lab personal page: http://fisher.berkeley.edu/cteg/members/matzke.html Lab phone: 510-643-6299 Dept. fax: 510-643-6264 Cell phone: 510-301-0179 Email: matzke at berkeley.edu Mailing address: Department of Integrative Biology 3060 VLSB #3140 Berkeley, CA 94720-3140 ----------------------------------------------------- "[W]hen people thought the earth was flat, they were wrong. When people thought the earth was spherical, they were wrong. But if you think that thinking the earth is spherical is just as wrong as thinking the earth is flat, then your view is wronger than both of them put together." Isaac Asimov (1989). "The Relativity of Wrong." The Skeptical Inquirer, 14(1), 35-44. Fall 1989. http://chem.tufts.edu/AnswersInScience/RelativityofWrong.htm
On 18/05/2011 10:02 PM, Nick Matzke wrote:> Hi, > > If I load 2 packages that have a function with the same > name, how do I tell R to run one or the other? > > (Instead of having R automatically use the first- or > last-loaded one, whichever it is. (Which is it, by the way.)) > > Cheers! > Nick > >It is the most recently attached one that would be chosen by default. Generally that's also most recently loaded, but there can be exceptions. Others have pointed out that :: is used to specify the package to use. If you use that, you don't need to have the package attached: it will be loaded but won't show up in the search path. If you are using a package without a namespace, expect problems. Having the namespace is nearly as good as automatically adding the pkg:: prefix to every call from functions within the package. Not having the namespace is nearly as bad as never using the prefix, even when you should. Duncan Murdoch
On reflection, it seems to me that what we really need here
is Prof. Ripley's mind_read() function that was foreshadowed
some years ago (see fortune("mind_read")) so that R could
determine just *which* lm() (for example) function the user
has in mind when he or she types ``lm(...)'' at the keyboard.
Perhaps Brian could report on what progress has been made
with the mind_read() function.
cheers,
Rolf