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

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: ControlResponseBias
> ### Title: Performs Factor Analysis controlling response bias
> ### Aliases: ControlResponseBias
> 
> ### ** Examples
> 
> ## This is an example using the vampyr_example dataset, which contains 4 SD markers (the first
> ## 4 items, defined using the "SD_items" argument) and 6 Physical aggression items extracted
> ## from the IDAQ questionnaire. Since the 6 content items are balanced (3 positively worded and
> ## 3 negatively worded), there is no need to use the "unbalaced_items" argument.
> 
> ControlResponseBias(vampyr_example, content_factors = 1, SD_items = c(1,2,3,4),
+     corr = "Pearson", contAC = TRUE, rotat = "none")


DETAILS OF ANALYSIS

Number of participants                      :   300 
Number of items                             :    10 
Items selected as SD items                  :  1, 2, 3, 4
Items selected as unbalanced                :  0
Dispersion Matrix                           : Pearson Correlations
Method for factor extraction                : Unweighted Least Squares (ULS)
Rotation Method                             : none

-----------------------------------------------------------------------Warning in mean.default(x) :
  argument is not numeric or logical: returning NA
Warning in mean.default(x) :
  argument is not numeric or logical: returning NA
Warning in mean.default(x) :
  argument is not numeric or logical: returning NA
Warning in mean.default(x) :
  argument is not numeric or logical: returning NA


Univariate item descriptives

Item       Mean        Variance    Skewness     Kurtosis (Zero centered)

Item   1   3.667       1.260       NA        NA
Item   2   3.263       1.760       NA        NA
Item   3   2.317       1.695       NA        NA
Item   4   2.947       1.924       NA        NA
Item   5   3.643       1.374       NA        NA
Item   6   2.467       1.802       NA        NA
Item   7   3.710       1.678       NA        NA
Item   8   3.493       1.629       NA        NA
Item   9   1.997       1.515       NA        NA
Item  10   1.687       0.925       NA        NA

Error in if (kurmax > 1 || kurmin < (-1)) { : 
  missing value where TRUE/FALSE needed
Calls: ControlResponseBias
Execution halted