some of arid regions problems of iran are saline and sodic soils. in improvement and reclamation of iranian arid rangelands, some foreign species of atriplex had been imported and adapted for many years ago. the most adapted species was atriplex canescens. at the present research, some environmental factors, vegetative characteristics (na, ca, mg and k), soil properties (moisture, ec, ph, solut...

It is well known that improper priors in Bayesian statistics may lead to proper posterior distributions and useful inference procedures. This motivates us to give an elementary introduction to a theoretical frame for statistics that includes improper priors. Axioms that allow improper priors are given by a relaxed version of Kolmogorov’s formulation of probability theory. The theory of conditio...

What is a good prior? Actual prior knowledge should be used, but for complex models this often not easily available. The can in the form of symmetry assumptions, and then choice will typically an improper prior. Also more generally, it quite common to choose priors. Motivated by we consider theoretical framework statistics that includes both priors posteriors. Knowledge represented possibly unb...