| Citation | Distinguished for his wide-ranging contributions to statistical theory and method. His book 'Tensor methods in statistics' (1987) is a pioneering exploitation of tensor methods applied to distributional problems arising in statistics. It contains substantial new results, in particular on the distribution of likelihood-based statistics widely used in applications. His book with J. A. Nelder, FRS 'Generalised linear models' (1st edition 1983, 2nd edition 1989) has had a major direct impact on statistical methods used in many fields of application; the second edition contains much new material developed since the first edition. Other work includes the elucidation of quasi-likelihood, a device for relaxing assumptions about errors made in many commonly used methods of statistical analysis, and the development of powerful methods for the analysis of ordinal data. |