Alexander Robert Tweedie

Professor Robert McNeill Alexander CBE FRS (1934-2016).

Robert McNeill Alexander, known to friends and colleagues as 'Neill', was a zoologist with an engineer's eye for how animals work. He used mathematical models to show how evolution has produced optimal designs. His skill was to choose appropriate models: realistic enough to contain the essence of a problem and yet simple enough to be tractable. He wrote fluently and easily: 23 books, 280 papers...

CCCXX. PHYTIN IN HUMAN NUTRITION. BY ROBERT ALEXANDER McCANCE

On Poisson–Tweedie mixtures

*Correspondence: [email protected] 1Department of Mathematics, Ohio University, Athens, OH, USA Full list of author information is available at the end of the article Abstract Poisson-Tweedie mixtures are the Poisson mixtures for which the mixing measure is generated by those members of the family of Tweedie distributions whose support is non-negative. This class of non-negative integer-valued ...

Robert Alexander McCance, and his forays into Experimental Medicine with Elsie Widdowson.

RA McCance was born in Dunmurry and, after naval air service in the First World War and time on a dairy farm, went to Sidney Sussex College in Cambridge with the intention of taking the Diploma in Agriculture. However, he was persuaded that a career in medicine might be more practicable and after success in the Natural Sciences Tripos he worked with Gowland Hopkins for three years. As a married...

Extended Truncated Tweedie - Poisson Model

It has been argued that by truncating the sample space of the negative binomial and of the inverse Gaussian-Poisson mixture models at zero, one is allowed to extend the parameter space of the model. Here that is proved to be the case for the more general three parameter Tweedie-Poisson mixture model. It is also proved that the distributions in the extended part of the parameter space are not th...