R Under development (unstable) (2023-11-07 r85491 ucrt) -- "Unsuffered Consequences"
Copyright (C) 2023 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> ##
> ##  c o m b s . R  Test Suite
> ##
> 
> combs <- pracma::combs
> randcomb <- pracma::randcomb
> 
> identical(combs(2, 1), 2)
[1] TRUE
> identical(combs(c(1, 2, 3), 2), matrix(rep(c(1, 2, 3), each = 2), 3, 2))
[1] TRUE
> identical(nrow(combs(1:6, 4)), 15L)
[1] TRUE
> 
> all(c(1,2,3) %in% randcomb(c(1,2,3), 3))
[1] TRUE
> 
> proc.time()
   user  system elapsed 
   0.17    0.03    0.18