powerplot function

Power Plot

Plots powers for the Kruskall-Wallis test, via Monte Carlo and two approximations.

powerplot(
  numgrps = 3,
  thetadagger = NULL,
  nnvec = 5:30,
  nmc = 50000,
  targetpower = 0.8,
  level = 0.05
)

Arguments

• numgrps: Number of groups to compare
• thetadagger: Direction of effect
• nnvec: vector of numbers per group.
• nmc: Number of Monte Carlo trials
• targetpower: Target power for test
• level: level for test.