Kruskal-Wallis Test: One-Sample (on)

The on implementation runs a Kruskal-Wallis test via a compiled C++ backend (kruskal_wallis_cpp()) directly on .proc$data, without going through an R-level x_by() grouping split.

Arguments

kwtest_def_on's baseline fn takes no arguments beyond .proc — nothing is passed through ... in KW_TEST() or statim::via() for this path.

Variants

None. kwtest_def_on declares only a base baseline — no variant() entries.

One-sample Kruskal-Wallis default class

No S7 wrapper. The baseline returns whatever kruskal_wallis_cpp() returns, unwrapped, a plain list with statistic, df, p_value. Unlike x_by(), this path does not return class_kw_test. It has its own print method (a tibble with H Statistic, Degrees of Freedom, p-value columns) and its own registered statim::making_tidy() entry (tibble::as_tibble(.x@data)), rather than inheriting statim::auto_tidy() from class_kw_test.

See also

Other kwtest-implementations: kwtest-xby

Examples

set.seed(123)
x = rcauchy(50, 1, 1.5)
y = rcauchy(50, 3, 1.5)
KW_TEST(on(x, y))
#> ────────────────────────────────────────────
#>   H Statistic  Degrees of Freedom  p-value  
#> ────────────────────────────────────────────
#>     12.900             1           <0.001   
#> ────────────────────────────────────────────
#>