R Under development (unstable) (2023-12-02 r85657 ucrt) -- "Unsuffered Consequences"
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> # check that ranef and VarCorr work even after loading ordinal: 
> library(lme4)
Loading required package: Matrix
> fm1 <- lmer(Reaction ~ Days + (Days | Subject), data=sleepstudy)
> ranef(fm1)
$Subject
    (Intercept)        Days
308   2.2585509   9.1989758
309 -40.3987381  -8.6196806
310 -38.9604090  -5.4488565
330  23.6906196  -4.8143503
331  22.2603126  -3.0699116
332   9.0395679  -0.2721770
333  16.8405086  -0.2236361
334  -7.2326151   1.0745816
335  -0.3336684 -10.7521652
337  34.8904868   8.6282652
349 -25.2102286   1.1734322
350 -13.0700342   6.6142178
351   4.5778642  -3.0152621
352  20.8636782   3.5360011
369   3.2754656   0.8722149
370 -25.6129993   4.8224850
371   0.8070461  -0.9881562
372  12.3145921   1.2840221

with conditional variances for "Subject" 
> VarCorr(fm1)
 Groups   Name        Std.Dev. Corr 
 Subject  (Intercept) 24.7407       
          Days         5.9221  0.066
 Residual             25.5918       
> library(ordinal)
> ranef(fm1)
$Subject
    (Intercept)        Days
308   2.2585509   9.1989758
309 -40.3987381  -8.6196806
310 -38.9604090  -5.4488565
330  23.6906196  -4.8143503
331  22.2603126  -3.0699116
332   9.0395679  -0.2721770
333  16.8405086  -0.2236361
334  -7.2326151   1.0745816
335  -0.3336684 -10.7521652
337  34.8904868   8.6282652
349 -25.2102286   1.1734322
350 -13.0700342   6.6142178
351   4.5778642  -3.0152621
352  20.8636782   3.5360011
369   3.2754656   0.8722149
370 -25.6129993   4.8224850
371   0.8070461  -0.9881562
372  12.3145921   1.2840221

with conditional variances for "Subject" 
> VarCorr(fm1)
 Groups   Name        Std.Dev. Corr 
 Subject  (Intercept) 24.7407       
          Days         5.9221  0.066
 Residual             25.5918       
> 
> proc.time()
   user  system elapsed 
   1.95    0.37    2.31