* using log directory ‘/home/hornik/tmp/CRAN_special_noSuggests/aramappings.Rcheck’
* using R Under development (unstable) (2026-01-27 r89337)
* using platform: x86_64-pc-linux-gnu
* R was compiled by
    gcc-15 (Debian 15.2.0-12) 15.2.0
    GNU Fortran (Debian 15.2.0-12) 15.2.0
* running under: Debian GNU/Linux forky/sid
* using session charset: UTF-8
* checking for file ‘aramappings/DESCRIPTION’ ... OK
* this is package ‘aramappings’ version ‘0.1.3’
* package encoding: UTF-8
* checking CRAN incoming feasibility ... [5s/7s] OK
* checking package namespace information ... OK
* checking package dependencies ... OK
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for executable files ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking for sufficient/correct file permissions ... OK
* checking whether package ‘aramappings’ can be installed ... [2s/2s] OK
* checking package directory ... OK
* checking for future file timestamps ... OK
* checking ‘build’ directory ... OK
* checking DESCRIPTION meta-information ... OK
* checking top-level files ... OK
* checking for left-over files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking code files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... [0s/0s] OK
* checking whether the package can be loaded with stated dependencies ... [0s/0s] OK
* checking whether the package can be unloaded cleanly ... [0s/0s] OK
* checking whether the namespace can be loaded with stated dependencies ... [0s/0s] OK
* checking whether the namespace can be unloaded cleanly ... [0s/0s] OK
* checking loading without being on the library search path ... [0s/0s] OK
* checking use of S3 registration ... OK
* checking dependencies in R code ... OK
* checking S3 generic/method consistency ... OK
* checking replacement functions ... OK
* checking foreign function calls ... OK
* checking R code for possible problems ... [5s/5s] OK
* checking Rd files ... [0s/0s] OK
* checking Rd metadata ... OK
* checking Rd line widths ... OK
* checking Rd cross-references ... OK
* checking for missing documentation entries ... OK
* checking for code/documentation mismatches ... OK
* checking Rd \usage sections ... OK
* checking Rd contents ... OK
* checking for unstated dependencies in examples ... OK
* checking contents of ‘data’ directory ... OK
* checking data for non-ASCII characters ... [0s/0s] OK
* checking LazyData ... OK
* checking data for ASCII and uncompressed saves ... OK
* checking installed files from ‘inst/doc’ ... OK
* checking files in ‘vignettes’ ... OK
* checking examples ... [0s/0s] ERROR
Running examples in ‘aramappings-Ex.R’ failed
The error most likely occurred in:

> base::assign(".ptime", proc.time(), pos = "CheckExEnv")
> ### Name: ara_exact_l1
> ### Title: Exact Adaptable Radial Axes (ARA) mappings using the L1 norm
> ### Aliases: ara_exact_l1
> 
> ### ** Examples
> 
> # Define subset of (numerical) variables of the auto_mpg dataset
> # 1:"mpg", 4:"horsepower", 5:"weight", 6:"acceleration"
> selected_variables <- c(1, 4, 5, 6)
> n <- length(selected_variables)
> 
> # Retain only selected variables and rename dataset as X
> X <- auto_mpg[, selected_variables] # Select a subset of variables
> 
> # Remove rows with missing values from X
> N <- nrow(X)
> rows_to_delete <- NULL
> for (i in 1:N) {
+   if (sum(is.na(X[i, ])) > 0) {
+     rows_to_delete <- c(rows_to_delete, -i)
+   }
+ }
> X <- X[rows_to_delete, ]
> 
> # Convert X to matrix
> X <- apply(as.matrix.noquote(X), 2, as.numeric)
> 
> # Standardize data
> Z <- scale(X)
> 
> # Define axis vectors (2-dimensional in this example)
> r <- c(0.8, 1, 1.2, 1)
> theta <- c(225, 100, 315, 80) * 2 * pi / 360
> V <- pracma::zeros(n, 2)
> for (i in 1:n) {
+   V[i,1] <- r[i] * cos(theta[i])
+   V[i,2] <- r[i] * sin(theta[i])
+ }
> 
> # Select variable for exact estimates, and use it for coloring the embedded
> # points
> variable <- sample(1:n, 1)
> 
> # Detect the number of available CPU cores
> if (requireNamespace("parallelly", quietly = TRUE)) {
+   NCORES <- parallelly::availableCores(omit = 1)
+ } else {
+   NCORES <- parallel::detectCores() - 1
+ }
> 
> # Create a cluster for parallel processing
> cl <- parallel::makeCluster(NCORES)
Error in .check_ncores(length(names)) : 31 simultaneous processes spawned
Calls: <Anonymous> -> makePSOCKcluster -> .check_ncores
Execution halted
* checking for unstated dependencies in ‘tests’ ... OK
* checking tests ... [39s/39s] ERROR
  Running ‘testthat.R’ [39s/39s]
Running the tests in ‘tests/testthat.R’ failed.
Complete output:
  > # This file is part of the standard setup for testthat.
  > # It is recommended that you do not modify it.
  > #
  > # Where should you do additional test configuration?
  > # Learn more about the roles of various files in:
  > # * https://r-pkgs.org/testing-design.html#sec-tests-files-overview
  > # * https://testthat.r-lib.org/articles/special-files.html
  > 
  > library(testthat)
  > library(aramappings)
  > 
  > test_check("aramappings")
  Saving _problems/test-ara_exact_l1-201.R
  [ FAIL 1 | WARN 0 | SKIP 3 | PASS 344 ]
  
  ══ Skipped tests (3) ═══════════════════════════════════════════════════════════
  • {parallelly} is not installed. (3): 'test-ara_exact_linf.R:189:1',
    'test-ara_unconstrained_l1.R:198:1', 'test-ara_unconstrained_linf.R:199:1'
  
  ══ Failed tests ════════════════════════════════════════════════════════════════
  ── Error ('test-ara_exact_l1.R:201:1'): (code run outside of `test_that()`) ────
  Error in `.check_ncores(length(names))`: 31 simultaneous processes spawned
  Backtrace:
      ▆
   1. └─parallel::makeCluster(NCORES) at test-ara_exact_l1.R:201:1
   2.   └─parallel::makePSOCKcluster(names = spec, ...)
   3.     └─parallel:::.check_ncores(length(names))
  
  [ FAIL 1 | WARN 0 | SKIP 3 | PASS 344 ]
  Error:
  ! Test failures.
  Execution halted
* checking for unstated dependencies in vignettes ... OK
* checking package vignettes ... OK
* checking re-building of vignette outputs ... [0s/0s] OK
* checking PDF version of manual ... [4s/4s] OK
* checking HTML version of manual ... [1s/1s] OK
* checking for non-standard things in the check directory ... OK
* checking for detritus in the temp directory ... OK
* DONE
Status: 2 ERRORs