Running examples in ‘lcc-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: lcc
> ### Title: Longitudinal Concordance Correlation (LCC) estimated by fixed
> ###   effects and variance components of polynomial mixed-effects
> ###   regression model
> ### Aliases: lcc
> ### Keywords: ggplot2 nlme
> 
> ### ** Examples
> 
> data(hue)
> ## Second degree polynomial model with random intercept, slope and
> ## quadratic term
> fm1<-lcc(dataset = hue, subject = "Fruit", resp = "H_mean",
+          method = "Method", time = "Time", qf = 2, qr = 2)
> summary(fm1)
$Summary.lcc
$Summary.lcc$fitted
   Time LCC: Scanner vs. Colorimeter
1     0                    0.4186140
2     1                    0.5318521
3     2                    0.6244965
4     3                    0.6958729
5     4                    0.7514938
6     5                    0.7961259
7     6                    0.8329398
8     7                    0.8638453
9     8                    0.8898932
10    9                    0.9115789
11   10                    0.9290653
12   11                    0.9423560
13   12                    0.9514339
14   13                    0.9563667
15   14                    0.9573715

$Summary.lcc$sampled
   Time CCC: Scanner vs. Colorimeter
0     0                    0.3899436
1     1                    0.5378424
2     2                    0.6263429
3     3                    0.7195472
4     4                    0.5411368
5     5                    0.9157635
6     6                    0.8539718
7     7                    0.6976627
8     8                    0.8237810
9     9                    0.8584154
10   10                    0.8869495
11   11                    0.9238437
12   12                    0.9349100
13   13                    0.9433093
14   14                    0.8984227

$Summary.lcc$gof
[1] 0.8808774


attr(,"class")
[1] "summary.lcc"
> summary(fm1, type="model")
$model
Linear mixed-effects model fit by REML
  Data: Data 
  Log-restricted-likelihood: -956.0625
  Fixed: y ~ fixed - 1 
      fixed(Intercept)       fixedFacAScanner             fixedPoly1 
          115.63430364            -0.93474387            -1.08639664 
            fixedPoly2 fixedFacAScanner:Poly1 fixedFacAScanner:Poly2 
           -0.07344755            -0.15746538             0.01916060 

Random effects:
 Formula: ~fmla.rand - 1 | ind
 Structure: General positive-definite
                                              StdDev     Corr          
fmla.rand(Intercept)                          1.11978237 fm.(I) fd=qr=T
fmla.randpoly(time, degree = qr, raw = TRUE)1 0.47023246  0.676        
fmla.randpoly(time, degree = qr, raw = TRUE)2 0.02425933 -0.699 -0.578 
Residual                                      1.14219305               

Number of Observations: 554
Number of Groups: 20 

attr(,"class")
[1] "summary.lcc"
> lccPlot(fm1)
Error in grid.Call.graphics(C_setviewport, vp, TRUE) : 
  VECTOR_ELT() can only be applied to a 'list', not a 'double'
Calls: lccPlot ... lapply -> FUN -> push.vp.viewport -> grid.Call.graphics
Execution halted