R Under development (unstable) (2025-08-21 r88668 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(mikropml)
> test_check("mikropml")
Fraction of data in the training set: 0.778 
	Groups in the training set: A C D 
	Groups in the testing set: B
Fraction of data in the training set: 0.778 
	Groups in the training set: A C D 
	Groups in the testing set: B
Fraction of data in the training set: 0.333 
	Groups in the training set: A D 
	Groups in the testing set: A B C D
Fraction of data in the training set: 0.785 
	Groups in the training set: A B E F G H 
	Groups in the testing set: C D
Fraction of data in the training set: 0.2 
	Groups in the training set: A B 
	Groups in the testing set: A B C D E F G H
Using 'dx' as the outcome column.
Using 'dx' as the outcome column.
Using 'dx' as the outcome column.
Using 'y' as the outcome column.
Using 'y' as the outcome column.

Attaching package: 'dplyr'

The following object is masked from 'package:testthat':

    matches

The following objects are masked from 'package:stats':

    filter, lag

The following objects are masked from 'package:base':

    intersect, setdiff, setequal, union

Using 'dx' as the outcome column.
Groups will not be kept together in CV partitions because the number of groups in the training set is not larger than `kfold`
Training the model...
Training complete.
Fraction of data in the training set: 0.785 
	Groups in the training set: A B E F G H 
	Groups in the testing set: C D
Using 'dx' as the outcome column.
Using 'dx' as the outcome column.
[ FAIL 0 | WARN 0 | SKIP 12 | PASS 317 ]

══ Skipped tests (12) ══════════════════════════════════════════════════════════
• On CRAN (12): 'test-feature_importance.R:14:3',
  'test-feature_importance.R:142:3', 'test-feature_importance.R:162:3',
  'test-run_ml.R:64:3', 'test-run_ml.R:82:3', 'test-run_ml.R:97:3',
  'test-run_ml.R:114:3', 'test-run_ml.R:134:3', 'test-run_ml.R:150:3',
  'test-run_ml.R:188:3', 'test-run_ml.R:279:3', 'test-train.R:44:3'

[ FAIL 0 | WARN 0 | SKIP 12 | PASS 317 ]
> 
> proc.time()
   user  system elapsed 
  33.15    1.17   34.31