Dear Michael and Spencer, I've modified the development version of the effects package on R-Forge so that the nlme and lme4 packages are listed under "Suggests" rather than "Depends". In this way, neither package is loaded along with effects.
Best, John On Thu, 8 Mar 2012 20:45:37 -0500 Michael Kubovy <kub...@virginia.edu> wrote: > Hi Spencer, > > In an Sweave script, which would take me too long to boil down to a > reproducible example, lme4 was loaded before effects, and a calculation > involving the effect() function failed. This was remedied by following John's > advice and loading the two packages in the order he recommended at the > beginning of the run. The problem went away. > > As far as I can tell, no such warning was issued, or at least none was > noticed by me, because I'm caching many computations, which may hide > warnings. > > MK > > On Mar 8, 2012, at 10:29 AM, Spencer Graves wrote: > > > Dear John, et al.: > > > > > > What happens if lme4 is loaded before the effect package? > > > > > > 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?) > > > > > > 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 > > > > ______________________________________________ > 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/ > ______________________________________________ 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.
