exactLTRE: An Exact Method for Life Table Response Experiment (LTRE) Analysis (original) (raw)

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) <doi:10.1111/2041-210X.14065>. We also provide some demographic functions, including generation time from Bienvenu and Legendre (2015) <doi:10.1086/681104>. For implementation of exactLTRE where all possible interactions are calculated, we use an operator matrix presented in Poelwijk, Krishna, and Ranganathan (2016) <doi:10.1371/journal.pcbi.1004771>.

Version:	0.1.2
Depends:	R (≥ 3.5.0)
Imports:	matrixcalc, popdemo
Published:	2025-06-28
DOI:	10.32614/CRAN.package.exactLTRE
Author:	Christina Hernandez [aut, cre, cph]
Maintainer:	Christina Hernandez
License:	MIT + file
NeedsCompilation:	no
Materials:	README, NEWS
CRAN checks:	exactLTRE results

Documentation:

Downloads:

Linking:

Please use the canonical formhttps://CRAN.R-project.org/package=exactLTREto link to this page.