[chrissy3815] luckieR 0.1.0.9000

christinahernan@gmail.com (Christina Hernandez) — Wed, 03 Jun 2026 20:36:30 GMT

User-friendly and generalized tools for the calculation of luck -- moments of variation in metrics like lifespan and lifetime reproductive output. We provide tools for calculating those moments and also performing decompositions into contributions from, for example, individual traits, environmental impacts, and luck (also called individual stochasticity). The functions included here are based on Snyder and Ellner (2024) , Cochran and Ellner (1992) , and Hernandez et al. (2024) .

[chrissy3815] exactLTRE 0.1.2.9000

christinahernan@gmail.com (Christina Hernandez) — Sun, 29 Jun 2025 20:50:37 GMT

Life Table Response Experiments (LTREs) are a method of comparative demographic analysis. The purpose is to quantify how the difference or variance in vital rates (stage-specific survival, growth, and fertility) among populations contributes to difference or variance in the population growth rate, "lambda." We provide functions for one-way fixed design and random design LTRE, using either the classical methods that have been in use for several decades, or an fANOVA-based exact method that directly calculates the impact on lambda of changes in matrix elements, for matrix elements and their interactions. The equations and descriptions for the classical methods of LTRE analysis can be found in Caswell (2001, ISBN: 0878930965), and the fANOVA-based exact methods are described in Hernandez et al. (2023) . We also provide some demographic functions, including generation time from Bienvenu and Legendre (2015) . For implementation of exactLTRE where all possible interactions are calculated, we use an operator matrix presented in Poelwijk, Krishna, and Ranganathan (2016) .

chrissy3815.r-universe.dev

[chrissy3815] luckieR 0.1.0.9000

[chrissy3815] exactLTRE 0.1.2.9000