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

> ### Name: crmsimulations
> ### Title: Simulations to Assess operating characteristics of proportional
> ###   odds model (POM), continuation ratio (CR) Model, and binary CRM
> ###   Designs
> ### Aliases: crmsimulations
> 
> ### ** Examples
> 
> #Example 1
> #Underlying True POM dosetox
> truePO1<-c(-0.4, 0.0011, -1.3, 0.0011, -2.8, 0.0011, -3.9, 0.0011)
> #POM Pseudodata
> initial.pom.y1<-c(rep(0,45),rep(1,36),rep(2,9),rep(3,8),rep(4,2),rep(0,18),
+ rep(1,35),rep(2,17),rep(3,24),rep(4,6),rep(0,8),rep(1,24),rep(2,18),rep(3,38),
+ rep(4,12),rep(0,1),rep(1,4),rep(2,5),rep(3,35),rep(4,55))
> initial.pom.d1<-c(rep(200,100),rep(1067,100),rep(1613,100),rep(3000,100))
> #POM CRM Design Simulation run 10 times, with a true dosetox model equal to a POM
> crmsimulations(startdose = 1060, numbersims = 10, cohortsize = 3, samplesize = 30,
+ pseudoweights = 3,pseudotox = initial.pom.y1, pseudodose = initial.pom.d1, dosetox = truePO1,
+ truedosetoxmodeltype = 'POM', design = 'POM', targetDLT = 0.30, discrete = FALSE,
+ discretedoses = NA, numberdltrule = NA, lowerlimitrule = NA, upperlimitrule = NA,
+ dltrule = NA, increaserule= NA, minimum = NA, maximum = NA, combine01 = FALSE)
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: crmsimulations -> fiterations
Execution halted