Dear R-users, The following question is more a statistic question than a R issue. I would like to know the difference between the two following non parametric technics : the bootstrap and the Wilks formula. I understand well the theory about the two technics but cannot find anything about their advantages and drawbacks and how to choose one rather than the other... The Wilks formula seems to be the simpliest but I don't know more. Anybody could help ? Thanks in advance.