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

> ### Name: maxadjAUC
> ### Title: Maximizing the Covariate-Adjusted AUC
> ### Aliases: maxadjAUC
> 
> ### ** Examples
> 
>   ## Don't show: 
>   expit <- function(x){
+     exp(x)/(1+exp(x))
+   }
> 
>   set.seed(1)
> 
>   covar <- rep(c(1:2),each=30)
> 
>   x1 <- rnorm(60,0,rep(runif(2,0.8,1.2),each=30))
>   x2 <- rnorm(60,0,rep(runif(2,0.8,1.2),each=30))
> 
>   covint <- rep(runif(2,-1.5,1.5), each=30)
> 
>   y <- rbinom(60,1,expit(covint + 1*x1 - 1*x2))
>   X <- cbind(x1,x2)
> 
>   output <- maxadjAUC(outcome=y, predictors=X, covariate=covar, initialval="rGLM",
+                       approxh = 1/3, conditional=FALSE, tolval = 1e-2, stepsz = 1e-2)
Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

Warning in (gradBY3 %*% xistart) * xistart :
  Recycling array of length 1 in array-vector arithmetic is deprecated.
  Use c() or as.vector() instead.

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: maxadjAUC ... tryCatch -> tryCatchList -> tryCatchOne -> <Anonymous>
Execution halted