GUniFrac: Generalized UniFrac Distances, Distance-Based Multivariate
Methods and Feature-Based Univariate Methods for Microbiome
Data Analysis
A suite of methods for powerful and robust microbiome data analysis including data normalization, data simulation, community-level association testing and differential abundance analysis. It implements generalized UniFrac distances,  Geometric Mean of Pairwise Ratios (GMPR) normalization, semiparametric data simulator, distance-based statistical methods, and feature-based statistical methods. The distance-based statistical methods include three extensions of PERMANOVA: (1) PERMANOVA using the Freedman-Lane permutation scheme, (2) PERMANOVA omnibus test using multiple matrices, and  (3) analytical approach to approximating PERMANOVA p-value. Feature-based statistical methods include linear model-based methods for differential abundance analysis of zero-inflated high-dimensional compositional data. 
| Version: | 1.9 | 
| Depends: | R (≥ 3.5.0) | 
| Imports: | Rcpp (≥ 0.12.13), vegan, ggplot2, matrixStats, Matrix, ape, parallel, stats, utils, statmod, rmutil, dirmult, MASS, ggrepel, foreach, modeest, inline, methods | 
| LinkingTo: | Rcpp | 
| Suggests: | ade4, knitr, markdown, ggpubr | 
| Published: | 2025-08-25 | 
| DOI: | 10.32614/CRAN.package.GUniFrac | 
| Author: | Jun Chen [aut, cre],
  Xianyang Zhang [aut],
  Lu Yang [aut],
  Lujun Zhang [aut] | 
| Maintainer: | Jun Chen  <chen.jun2 at mayo.edu> | 
| License: | GPL-3 | 
| NeedsCompilation: | yes | 
| In views: | Phylogenetics | 
| CRAN checks: | GUniFrac results | 
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