I am attempting to set up a mixed effects model, with one factor fixed (put in as.factor, with three factor levels) and one factor random(put in as.factor, with four different batches) as well as the interactions. I have tried the lme function, but R continues to crash everytime I run it... My code is: model_lme(y~a,random=~b+a:b) Is this way off base? I just need to get F statistics to do hypothesis testing. Thanks, Chris
This has come up less than a month ago: https://stat.ethz.ch/pipermail/r-help/2004-November/060038.html crevell at rice.edu writes:> I am attempting to set up a mixed effects model, with one factor fixed (put > in as.factor, with three factor levels) and one factor random(put in > as.factor, with four different batches) as well as the interactions. I have > tried the lme function, but R continues to crash everytime I run it... > My code is: > model_lme(y~a,random=~b+a:b) > Is this way off base? > I just need to get F statistics to do hypothesis testing. > > Thanks, > Chris > > ______________________________________________ > R-help at stat.math.ethz.ch mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html > >-- Fernando Henrique Ferraz P. da Rosa http://www.ime.usp.br/~feferraz
>>>>> "Chris" == <crevell at rice.edu> >>>>> on Thu, 9 Dec 2004 22:59:13 -0000 writes:Chris> I am attempting to set up a mixed effects model, with Chris> one factor fixed (put in as.factor, with three factor Chris> levels) and one factor random(put in as.factor, with Chris> four different batches) as well as the interactions. Chris> I have tried the lme function, but R continues to Chris> crash everytime I run it... My code is: Chris> model_lme(y~a,random=~b+a:b) Chris> Is this way off base? well, yes: if this is your code and you don't get an error or a strong warning, your version of R is so much outdated, that you *really* should upgrade. [The use of "_" as assignment operator is ``prehistoric''. It's still valid in some Jurassic implementations of the S language...] Chris> I just need to get F statistics to do hypothesis testing. Martin