Check this box to calculate a
test statistic
using the ranks of the individuals' scores instead of actual scores when the
trait
is binary and
regression
-based tests are selected with a fixed threshold. .
You can perform an asymptotic
Wilcoxon test
that does not rely on permutations if you check this box and enter
0
for the
Number of Permutations to Perform
text box. This asymptotic test is similar to the method described in Madsen and Browning (2009), but uses the actual expected value and
variance
of the rank statistic under the
null hypothesis
(Randles and Wolfe 1979), instead of estimates from permuted data, and can be applied to
models
using other weights as well