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

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: plot.LexChar
> ### Title: Plot LexChar objects
> ### Aliases: plot.LexChar
> ### Keywords: plot
> 
> ### ** Examples
> 
> data(open.question)
> res.TD<-TextData(open.question, var.text=c(9,10), var.agg="Gen_Edu", Fmin=10, Dmin=10,
+         remov.number=TRUE, stop.word.tm=TRUE)
> LD<-LexChar(res.TD,maxCharDoc = 0)


CHARACTERISTIC WORDS
(DETAILED INFORMATION)

Group1: M_EduLow
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      Word          Intern %  glob % Intern freq Glob freq  p.value    v.test 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                wife   3.646   1.482          7         19  0.03094    2.157905
               peace   0.000   2.262          0         29  0.01710   -2.384529
             friends   0.521   3.276          1         42  0.01690   -2.388852

Group2: M_EduMed
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Group3: M_EduHigh
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      Word          Intern %  glob % Intern freq Glob freq  p.value    v.test 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                 job   8.264   3.900         10         50  0.03019    2.167563

Group4: W_EduLow
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Group5: W_EduMed
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      Word          Intern %  glob % Intern freq Glob freq  p.value    v.test 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
               think   2.128   0.936          7         12  0.03213    2.142826
                good   4.863   7.566         16         97  0.03626    -2.09401

Group6: W_EduHigh
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
      Word          Intern %  glob % Intern freq Glob freq  p.value    v.test 
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
             husband   4.965   1.794          7         23  0.01806    2.364477
> plot(LD)
Error in grid.Call.graphics(C_setviewport, vp, TRUE) : 
  VECTOR_ELT() can only be applied to a 'list', not a 'double'
Calls: <Anonymous> ... lapply -> FUN -> push.vp.viewport -> grid.Call.graphics
Execution halted