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

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: NemenyiTest
> ### Title: Nemenyi Test
> ### Aliases: NemenyiTest NemenyiTest.default NemenyiTest.formula
> ### Keywords: htest
> 
> ### ** Examples
> 
> ## Hollander & Wolfe (1973), 116.
> ## Mucociliary efficiency from the rate of removal of dust in normal
> ##  subjects, subjects with obstructive airway disease, and subjects
> ##  with asbestosis.
> x <- c(2.9, 3.0, 2.5, 2.6, 3.2) # normal subjects
> y <- c(3.8, 2.7, 4.0, 2.4)      # with obstructive airway disease
> z <- c(2.8, 3.4, 3.7, 2.2, 2.0) # with asbestosis
> 
> NemenyiTest(list(x, y, z))

 Nemenyi's test of multiple comparisons for independent samples (tukey)  

    mean.rank.diff   pval    
2-1            1.8 0.7972    
3-1           -0.6 0.9720    
3-2           -2.4 0.6686    
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

> 
> ## Equivalently,
> x <- c(x, y, z)
> g <- factor(rep(1:3, c(5, 4, 5)),
+             labels = c("Normal subjects",
+                        "Subjects with obstructive airway disease",
+                        "Subjects with asbestosis"))
> 
> NemenyiTest(x, g)

 Nemenyi's test of multiple comparisons for independent samples (tukey)  

                                                                  mean.rank.diff
Subjects with obstructive airway disease-Normal subjects                     1.8
Subjects with asbestosis-Normal subjects                                    -0.6
Subjects with asbestosis-Subjects with obstructive airway disease           -2.4
                                                                    pval    
Subjects with obstructive airway disease-Normal subjects          0.7972    
Subjects with asbestosis-Normal subjects                          0.9720    
Subjects with asbestosis-Subjects with obstructive airway disease 0.6686    
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

> 
> ## Formula interface.
> boxplot(Ozone ~ Month, data = airquality)
> NemenyiTest(Ozone ~ Month, data = airquality)

 Nemenyi's test of multiple comparisons for independent samples (tukey)  

    mean.rank.diff     pval    
6-5    12.02991453  0.88737    
7-5    41.21153846 0.000097 ***
8-5    38.53846154  0.00035 ***
9-5    11.99734748  0.67819    
7-6    29.18162393  0.16373    
8-6    26.50854701  0.24773    
9-6    -0.03256705  1.00000    
8-7    -2.67307692  0.99853    
9-7   -29.21419098  0.01136 *  
9-8   -26.54111406  0.02867 *  
---
Signif. codes:  0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1

> 
> # Hedderich & Sachs, 2012, p. 555
> d.frm <- data.frame(x=c(28,30,33,35,38,41, 36,39,40,43,45,50, 44,45,47,49,53,54),
+                     g=c(rep(LETTERS[1:3], each=6)))
> 
> NemenyiTest(x~g, d.frm)
Error in NemenyiTest.default(c(28, 30, 33, 35, 38, 41, 36, 39, 40, 43,  : 
  all group levels must be finite
Calls: NemenyiTest ... DoCall -> eval -> eval -> <Anonymous> -> NemenyiTest.default
Execution halted