RE : with lmer : Erreur dans names(argNew)[1] <- names(formals(new))[[1]]

Here are data, script and sessionInfo()
Florent

R version 2.10.0 (2009-10-26)
i386-pc-mingw32

locale:
[1] LC_COLLATE=French_France.1252  LC_CTYPE=French_France.1252    LC_MONETARY=French_France.1252 LC_NUMERIC=C
[5] LC_TIME=French_France.1252

attached base packages:
[1] grDevices datasets  splines   graphics  stats     tcltk     utils     methods   base

other attached packages:
 [1] lme4_0.999375-33   Matrix_0.999375-41 lattice_0.18-3     car_2.0-2          nnet_7.3-1         MASS_7.3-4         svSocket_0.9-48    TinnR_1.0.3
 [9] R2HTML_2.0.0       Hmisc_3.8-0        survival_2.35-7

loaded via a namespace (and not attached):
[1] cluster_1.13.1 grid_2.10.0    nlme_3.1-96    svMisc_0.9-57  tools_2.10.0



-----Message d'origine-----
De : dmbates at gmail.com [mailto:dmbates at gmail.com] De la part de Douglas Bates
Envoy? : mardi 3 ao?t 2010 17:52
? : DUYME Florent
Cc : r-sig-mixed-models at r-project.org
Objet : Re: [R-sig-ME] with lmer : Erreur dans names(argNew)[1] <- names(formals(new))[[1]]

Without a reproducible example it is difficult to determine why the
problem may be manifesting itself.  I would note that you are using
the car package and there may be an interaction between having car
loaded and some of the methods in lme4.  However, without a
reproducible example and some information on exactly what versions of
which packages are attached (i.e. the output from sessionInfo()) this
is just speculation.


On Tue, Jul 20, 2010 at 3:18 AM, DUYME Florent

Hi



While running lmer after lm, I get  this error message :



Erreur dans names(argNew)[1] <- names(formals(new))[[1]] :

 l'argument de remplacement est de longueur nulle



I don't understand why it appears. I re-start R, and then lmer works.



I suppose the previous work has an influence on lmer; why ?





My previous work:

op<-options(contrasts=c("contr.sum", "contr.treatment"))

resu1<-lm(Y ~ fact1 + bloc_c*bloc_l, data=DF)

Anova(resu1, type="III")  # library car

summary(resu1)

options(op)





sessionInfo()

R version 2.10.0 (2009-10-26)

i386-pc-mingw32



locale:

[1] LC_COLLATE=French_France.1252  LC_CTYPE=French_France.1252    LC_MONETARY=French_France.1252 LC_NUMERIC=C

[5] LC_TIME=French_France.1252



attached base packages:

[1] grDevices datasets  splines   graphics  stats     tcltk     utils     methods   base



other attached packages:

 [1] lme4_0.999375-33   Matrix_0.999375-41 car_1.2-16         multcomp_1.1-7     mvtnorm_0.9-9      lattice_0.18-3     gdata_2.8.0        RODBC_1.3-1

 [9] svSocket_0.9-48    TinnR_1.0.3        R2HTML_2.0.0       Hmisc_3.8-0        survival_2.35-7



loaded via a namespace (and not attached):

[1] cluster_1.13.1 grid_2.10.0    gtools_2.6.2   nlme_3.1-96    svMisc_0.9-57  tools_2.10.0







thanks for your advices



florent


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