Package: mlr3tuning
Check: examples
New result: ERROR
  Running examples in ‘mlr3tuning-Ex.R’ failed
  The error most likely occurred in:
  
  > base::assign(".ptime", proc.time(), pos = "CheckExEnv")
  > ### Name: mlr_tuners_cmaes
  > ### Title: Hyperparameter Tuning with Covariance Matrix Adaptation
  > ###   Evolution Strategy
  > ### Aliases: mlr_tuners_cmaes TunerBatchCmaes
  > 
  > ### ** Examples
  > 
  > # example only runs if adagio is available
  > if (mlr3misc::require_namespaces("adagio", quietly = TRUE)) {
  + # Hyperparameter Optimization
  + 
  + # load learner and set search space
  + learner = lrn("classif.rpart",
  +   cp = to_tune(1e-04, 1e-1, logscale = TRUE),
  +   minsplit = to_tune(p_dbl(2, 128, trafo = as.integer)),
  +   minbucket = to_tune(p_dbl(1, 64, trafo = as.integer))
  + )
  + 
  + # run hyperparameter tuning on the Palmer Penguins data set
  + instance = tune(
  +   tuner = tnr("cmaes"),
  +   task = tsk("penguins"),
  +   learner = learner,
  +   resampling = rsmp("holdout"),
  +   measure = msr("classif.ce"),
  +   term_evals = 10)
  + 
  + # best performing hyperparameter configuration
  + instance$result
  + 
  + # all evaluated hyperparameter configuration
  + as.data.table(instance$archive)
  + 
  + # fit final model on complete data set
  + learner$param_set$values = instance$result_learner_param_vals
  + learner$train(tsk("penguins"))
  + }
  Warning: Package 'libcmaesr' required but not installed for Optimizer '<OptimizerBatchCmaes>'
  Warning: Package 'libcmaesr' required but not installed for Tuner '<TunerBatchCmaes>'
  Error: The following packages could not be loaded: libcmaesr
  Execution halted
  Examples with CPU (user + system) or elapsed time > 5s
                          user system elapsed
  mlr3tuning.one_se_rule 4.955  0.088   5.044