Running examples in 'epitab-Ex.R' failed
The error most likely occurred in:

> ### Name: neat_table
> ### Title: Displays a neatly formatted contingency table.
> ### Aliases: neat_table
> 
> ### ** Examples
> 
> 
> # This example uses a dummy data set of whether an individual was treated or not
> treat <- data.frame(age=abs(rnorm(100, 60, 20)),
+                     sex=factor(sample(c("M", "F"), 100, replace=TRUE)),
+                     variant=factor(sample(c("A", "B"), 100, replace=TRUE)),
+                     treated=factor(sample(c("Yes", "No"), 100, replace=TRUE),
+                                    levels=c("Yes", "No")))
> treat$agebin <- cut(treat$age, breaks=c(0, 40, 60, 80, 9999),
+                     labels=c("0-40", "41-60", "61-80", "80+"))
> 
> tab <- contingency_table(list("Age"='agebin', "Sex"='sex'),
+                          outcomes=list('Treated'='treated'),
+                          crosstab_funcs=list(freq()),
+                          col_funcs=list("Mean age"=summary_mean('age')),
+                          data=treat)
> 
> # For use in an Rmarkdown that outputs to HTML
> neat_table(tab, 'html')
Error in namespaceExport(ns, exports) : 
  undefined exports: %s!=%, %s!==%, %s+%, %s<%, %s<=%, %s==%, %s===%, %s>%, %s>=%, %stri!=%, %stri!==%, %stri+%, %stri<%, %stri<=%, %stri==%, %stri===%, %stri>%, %stri>=%, stri_datetime_add<-, stri_sub<-, stri_subset<-, stri_subset_charclass<-, stri_subset_coll<-, stri_subset_fixed<-, stri_subset_regex<-, stri_c, stri_c_list, stri_cmp, stri_cmp_eq, stri_cmp_equiv, stri_cmp_ge, stri_cmp_gt, stri_cmp_le, stri_cmp_lt, stri_cmp_neq, stri_cmp_nequiv, stri_compare, stri_conv, stri_count, stri_count_boundaries, stri_count_charclass, stri_count_coll, stri_count_fixed, stri_count_regex, stri_count_words, stri_datetime_add, stri_datetime_create, stri_datetime_fields, stri_datetime_format, stri_datetime_fstr, stri_datetime_now, stri_datetime_parse, stri_datetime_symbols, stri_detect, stri_detect_charclass, stri_detect_coll, stri_detect_fixed, stri_detect_regex, stri_dup, stri_duplicated, stri_duplicated_any, stri_enc_detect, stri_enc_detect2, stri_enc_fromutf32, stri_enc_get, stri_enc_inf
Calls: neat_table ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>
Execution halted