Holm, StureFrisen, Marianne2011-02-102011-02-101985-04-010349-8034http://hdl.handle.net/2077/24401The character of nonparametric statistical methods is that they are constructed for very general situations, without the specific narrow assumptions, which appear in the common parametric methods. Isotonic regression is a nonparametric regression method, which has paid a well deserved attention for some decades. In this case the only assumption about the regression function is that it is non-decreasing (or non increasing). The basic theory of isotonic regression is contained in the book by Barlow, Bartholomew, Brenner and Brunk (1972).18engText