R Under development (unstable) (2024-03-16 r86144 ucrt) -- "Unsuffered Consequences"
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> library(testthat)
> library(konfound)
Sensitivity analysis as described in Frank, 
Maroulis, Duong, and Kelcey (2013) and in 
Frank (2000).
For more information visit http://konfound-it.com.
> 
> test_check("konfound")
Dependent variable is mpg 
Dependent variable is wt 
Using the absolute value of the estimated effect, 
          results can be interpreted by symmetry.
Using the absolute value of the estimated effect, 
          results can be interpreted by symmetry.
[ FAIL 0 | WARN 2 | SKIP 0 | PASS 55 ]

[ FAIL 0 | WARN 2 | SKIP 0 | PASS 55 ]
> 
> proc.time()
   user  system elapsed 
   8.84    0.79    9.64