n id="math/permutation-test" class="binding-sym">math/permutation-test</span> <span class="binding-type">function</span> <span class="binding-type"><a href="https://github.com/janet-lang/spork/blob/87a2aae508a86d45363ae4cc747141847e463ee4//spork/math.janet#L487">source</a></span> <pre class="binding-text">(permutation-test xs ys &amp;opt a k)

Conducts a permutation test to determine if two data sets
`xs` and `ys` are *significantly* different from each other.
You can use alternative hypotesis `a`, which de