[R-sig-ME] Missing information in "name" column of Random effects output

Jorge González jorge.gonzalez at psy.kuleuven.be
Tue Sep 25 20:42:40 CEST 2007


Dear all,

My apologies if this has been discussed before. When estimating a model 
with lmer, I can't see anymore the contents of the "name" column in the 
Random effects part of the output. See the example below

###### begin example ###################
 > sessionInfo()
R version 2.5.1 (2007-06-27)
i386-pc-mingw32

locale:
LC_COLLATE=Dutch_Belgium.1252;LC_CTYPE=Dutch_Belgium.1252;LC_MONETARY=Dutch_Belgium.1252;LC_NUMERIC=C;LC_TIME=Dutch_Belgium.1252

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

other attached packages:
        lme4       Matrix      lattice
 "0.99875-7" "0.999375-2"     "0.16-5"
 > fm1 <- lmer(Reaction ~ Days + (Days|Subject), sleepstudy)
 > fm1
Linear mixed-effects model fit by REML
Formula: Reaction ~ Days + (Days | Subject)
   Data: sleepstudy
  AIC  BIC logLik MLdeviance REMLdeviance
 1754 1770 -871.8       1752         1744
Random effects:
 Groups   Name Variance  Std.Dev. Corr 
 Subject             610.835  24.7151       
                            35.056   5.9208  0.067
 Residual            655.066  25.5943       
number of obs: 180, groups: Subject, 18

Fixed effects:
                 Estimate   Std. Error t value
(Intercept)  251.405      6.820   36.86
Days            10.467      1.546    6.77

Correlation of Fixed Effects:
     (Intr)
Days -0.137
 >
#################### end example ##################
How can I know which variance correspond to the subject  random 
intercept and which one to the subject slope Days? As far as I remember 
this information was available in previous versions. Is this a bug?

Thank you very much in advance

Jorge

-- 

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|Jorge González                                                       |
|Faculty of Psychology                                                |
|Research Group of Quantitative Psychology and Individual Differences |
|jorge.gonzalez at psy.kuleuven.be                                       |
|http://perswww.kuleuven.be/jorge_gonzalez                            |
|http://www.kuleuven.be/cv/u0045204e.htm                              |
|_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_|




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