Brunner-Munzel検定って比較する両群に重なりがないとp値がNAになるんだが、
これってバグなのか?



> x=1:5
> y=6:10
> lawstat::brunner.munzel.test(x,y)

Brunner-Munzel Test

data: x and y
Brunner-Munzel Test Statistic = Inf, df = NaN, p-value = NA
95 percent confidence interval:
NaN NaN
sample estimates:
P(X<Y)+.5*P(X=Y)
1

> x=1:6
> y=6:11
> lawstat::brunner.munzel.test(x,y)

Brunner-Munzel Test

data: x and y
Brunner-Munzel Test Statistic = 24.749, df = 10, p-value =
2.651e-10
95 percent confidence interval:
0.9423463 1.0298759
sample estimates:
P(X<Y)+.5*P(X=Y)
0.9861111