plot() functionpwrss.np.2means(), pwrss.z.logreg(),
pwrss.z.poisreg(), pwrss.chisq.gofit(), and
generic power.chisq.test() functionsplot() functionpwrss.z.med() and
pwrss.f.ancova() console printpwrss.t.reg() and pwrss.z.med()
functions