R Under development (unstable) (2025-01-08 r87545 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(patterncausality)
> 
> test_check("patterncausality")
[ FAIL 0 | WARN 0 | SKIP 1 | PASS 37 ]

══ Skipped tests (1) ═══════════════════════════════════════════════════════════
• empty test (1): 'test-pc_functions.R:68:1'

[ FAIL 0 | WARN 0 | SKIP 1 | PASS 37 ]
> 
> proc.time()
   user  system elapsed 
   1.92    0.32    2.23