R Under development (unstable) (2026-03-16 r89642 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(xtpqroot)
> 
> test_check("xtpqroot")
-----------------------------------------------------------------
CIPS(tau) Panel Quantile Unit Root Test
Yang, Wei & Cai (2022, Economics Letters)
Variable: invest | N = 5, T = 20 | Model: intercept
-----------------------------------------------------------------
CIPS (OLS):   -5.4869  p-value: 0.6600

Tau      CIPS(tau)    p-value      Decision
--------------------------------------------------
0.25     -4.5200      0.0200      ** Reject H0
0.75     -6.1900      1.0000       Fail to reject
-----------------------------------------------------------------
H0: All panels contain a unit root
H1: Some panels are stationary
*** p<0.01, ** p<0.05, * p<0.10
[ FAIL 0 | WARN 0 | SKIP 0 | PASS 13 ]
> 
> proc.time()
   user  system elapsed 
  11.84    1.23   13.07