R Under development (unstable) (2025-07-22 r88445 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(rater)
* The rater package uses `Stan` to fit bayesian models.
* If you are working on a local, multicore CPU with excess RAM please call:
* options(mc.cores = parallel::detectCores())
* This will allow Stan to run inference on multiple cores in parallel.
> 
> test_check("rater")
[ FAIL 0 | WARN 0 | SKIP 9 | PASS 375 ]

══ Skipped tests (9) ═══════════════════════════════════════════════════════════
• On CRAN (6): 'test-model_comparison.R:14:3', 'test-model_comparison.R:45:3',
  'test_model_class.R:2:3', 'test_rater.R:13:3', 'test_rater.R:69:3',
  'test_rater.R:266:3'
• empty test (3): 'test_plotting.R:47:1', 'test_plotting.R:56:1',
  'test_plotting.R:60:1'

[ FAIL 0 | WARN 0 | SKIP 9 | PASS 375 ]
There were 12 warnings (use warnings() to see them)
> 
> proc.time()
   user  system elapsed 
  20.95    1.25   22.35