- Annual Symposium and Workshop: 8-9 November 2019
Speakers: H. Iijima, R. Kaneko, K. Morita, R. Oizumi, R. Shefferson, Y. Tachiki
- Semiannual Workshop: 7-9 June 2019
- Annual Symposium and Workshop: 9-10 November 2018
Speakers: Y. Kawai, R. Shefferson, M. Shimada, T. Takada, M. Umezaki, H. Yokomizo
R Package lefko3
Lefko3 is an R package designed to produce historical and ahsitorical matrix projection models (MPMs), where historical MPMs are large matrices that incorporate 3 consecutive time steps in each matrix. These matrices allow the history of the individual to be more completely modeled within population dynamics models, which is important given that MPMs typically assume no influence of differences in individual history on population dynamics. The package is currently available for download through CRAN, with documentation available here.
Current version: 2.4.2 (available from 17 September 2020).
Next version: 3.0.0. WIll include functions to calculate sensitivity and elasticity of lambda to matrix elements, and to estimate function-based ahistorical age x stage matrices. Core kernels of deterministic analysis functions will all use the C++ Armadillo library. New expansions to function modelsearch() allowing for the zero-inflated Poisson distribution in size and fecundity models.
Power Demography is a semiannual event incorporating workshops aimed at showcasing the cutting edge in demography, and at training the next generation of demographers. Meetings occur in May/June and November. All Power Demography events include workshops taught by leaders in the field, and the series is capped off in November with a symposium disseminating the best current research. Events are held at the University of Tokyo's Komaba Campus, and participants are asked to register.