The simplex plays an important role as sample space in many practical situations where compositional data in the form of proportions of some whole require interpretation it is argued that the statistical analysis of such data has proved difficult because of a lack both of concepts of independence and of rich enough parametric classes of distributions in the simplex. The statistical analysis of compositional data by j aitchison universityof hong kong read before the royal statistical society at a meeting organized by the research section on wednesday 13th january 1982 professor r n curnow in the chair summary the simplex plays an important role as sample space in many practical situations where. The statistical analysis of compositional data j aitchison auth download z library download books for free find books. The statistical analysis of compositional data university of hong kong read before the royal statistical society at a meeting organized by the researchsectionon wednesday 13th january 1982 professor r n curnowin the chair summary the simplex plays an important role as sample space in many practical situations where