Software for bivariate line-fitting in allometry.
Software for multivariate analysis in ecology, via visualizing and modelling key data properties (in particular, the mean-variance relationship). This avoids undesirable properties of algorithmic approaches (Warton et al 2012). The package has (model-based) methods for hypothesis testing, including traits in models to explain interspecific variation, and predictive modelling tools via the LASSO.
Software for species distribution modelling using presence-only data, with a range of potential choices of penalised estimation (LASSO, elastic net, etc) to avoid over-fitting and implicitly perform model selection.