Linear mixed-effects models are a powerful tool for modelling longitudinal data and are widely used in practice. For a given set of covariates in a linear mixed-effects model, selecting the covariance ...

The CALIS procedure (Covariance Analysis and Linear Structural Equations) in SAS/STAT software estimates parameters and tests the appropriateness of linear structural equation models using covariance ...

There is growing appreciation that ecological communities are phylogenetically structured, with phylogenetically closely related species either more or less likely to co-occur at the same site. Here, ...