nadiv - (Non)Additive Genetic Relatedness Matrices

Constructs (non)additive genetic relationship matrices, and their inverses, from a pedigree to be used in linear mixed effect models (A.K.A. the 'animal model'). Also includes other functions to facilitate the use of animal models. Some functions have been created to be used in conjunction with the R package 'asreml' for the 'ASReml' software, which can be obtained upon purchase from 'VSN' international (<https://vsni.co.uk/software/asreml>).

Last updated 10 months ago

cpp

7.13 score 20 stars 3 dependents 151 scripts 906 downloads

ICC - Facilitating Estimation of the Intraclass Correlation Coefficient

Assist in the estimation of the Intraclass Correlation Coefficient (ICC) from variance components of a one-way analysis of variance and also estimate the number of individuals or groups necessary to obtain an ICC estimate with a desired confidence interval width.

Last updated 3 years ago

6.80 score 6 stars 2 dependents 276 scripts 1.3k downloads

gremlin - Mixed-Effects REML Incorporating Generalized Inverses

Fit linear mixed-effects models using restricted (or residual) maximum likelihood (REML) and with generalized inverse matrices to specify covariance structures for random effects. In particular, the package is suited to fit quantitative genetic mixed models, often referred to as 'animal models'. Implements the average information algorithm as the main tool to maximize the restricted log-likelihood, but with other algorithms available.

Last updated 4 months ago

average-informationlinear-mixed-modelsmaximum-likelihoodmixed-modelscpp

3.85 score 5 stars 14 scripts 584 downloads