Plymouth Routines In Multivariate Ecological Research (PRIMER) is a statistical package that is a collection of specialist univariate, multivariate, and graphical routines for analyzing species sampling data for community ecology. Types of data analyzed are typically species abundance, biomass, presence/absence, and percent area cover, among others. It is primarily used in the scientific community for ecological and environmental studies. Multivariate routines include: *grouping (CLUSTER) *sorting (MDS) *principal component identification (PCA) *hypothesis testing (ANOSIM) *sample discrimination (SIMPER) *trend correlation (BEST) *comparisons (RELATE) *diversity, dominance, and distribution calculating * Permutational multivariate analysis of variance ( PERMANOVA) Routines can be resource intensive due to their non-parametric and permutation-based nature. Programmed in the VB.Net environment.

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