Dear Spencer, > -----Original Message----- > From: Spencer Graves [mailto:spencer.gra...@prodsyse.com] > Sent: March-08-12 10:29 AM > To: Michael Kubovy > Cc: John Fox; r-help > Subject: Re: [R] Packages 'effects' loads 'name' which conflicts with > 'lme4' [corrected subject: Package 'effects' loads 'nlme' which > conflicts with 'lme4'] > > Dear John, et al.: > > > What happens if lme4 is loaded before the effect package?
Then some functions in it will be masked by nlme, which is loaded along with effects. Sandy Weisberg and I are discussing moving nlme from "Depends" to "Suggests" in the effects package Description file to avoid this potential problem. Although we'll have to check more carefully, I don't at this point see a reason not to do that. > > > Is this an issue of a user wanting to use two different packages > with potentially conflicting names? What are the standard > recommendations for handling issues like this? Just to test my > comprehension, I assume that the key is that users should routinely > watch for warnings of name conflicts and follow the advice of sect. > "1.6.1 Specifying imports and exports" of "Writing R Extensions" when > that occurs? (This is another reason for writing R packages and using > namespaces, so users can record appropriately what they want in > situations like this and not have to worry about name conflicts later?) The name conflicts are in lme4 and nlme, which share an author. I think that it's inevitable with 3000+ CRAN packages that there will be name conflicts, even if packages only export objects meant for the user. Best, John > > > Thanks, > Spencer > > > On 3/8/2012 4:19 AM, Michael Kubovy wrote: > > Dear John, > > > > Thanks for the quick response. It works perfectly. > > > > Michael > > > > On Mar 7, 2012, at 9:19 PM, John Fox wrote: > > > >> Dear Michael, > >> > >> effect() works with lmer(). Just load lme4 after the effect package. > See the penultimate example in ?effect. > >> > >> I hope this helps, > >> John > >> > >> ------------------------------------------------ > >> John Fox > >> Sen. William McMaster Prof. of Social Statistics Department of > >> Sociology McMaster University Hamilton, Ontario, Canada > >> http://socserv.mcmaster.ca/jfox/ > >> > >> On Wed, 7 Mar 2012 20:53:20 -0500 > >> Michael Kubovy<kub...@virginia.edu> wrote: > >>> Hi, > >>> > >>> I would like to use the effect() function (actually a slightly > modified version of it) on the output of the lmer() function in the > lme4 package. But the effects package requires the nlme pacvkage, which > is incompatible with lme4. Workaround? > > ______________________________________________ > > Professor Michael Kubovy > > University of Virginia > > Department of Psychology > > for mail add: for FedEx or UPS add: > > P.O.Box 400400 Gilmer Hall, Room 102 > > Charlottesville, VA 22904-4400 485 McCormick Road > > USA Charlottesville, VA 22903 > > room phone > > Office: B011 +1-434-982-4729 > > Lab: B019 +1-434-982-4751 > > WWW: http://www.people.virginia.edu/~mk9y/ > > > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > 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. > > > > > -- > Spencer Graves, PE, PhD > President and Chief Technology Officer > Structure Inspection and Monitoring, Inc. > 751 Emerson Ct. > San José, CA 95126 > ph: 408-655-4567 > web: www.structuremonitoring.com ______________________________________________ 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.
