Professional Comprehensive Omics Data Analysis R package pctax version 0.1.7 Provides a comprehensive suite of tools for analyzing omics data. It includes functionalities for alpha diversity analysis, beta diversity analysis, differential abundance analysis, community assembly analysis, visualization of phylogenetic tree, and functional enrichment analysis. With a progressive approach, the package offers a range of analysis methods to explore and understand the complex communities. It is designed to support researchers and practitioners in conducting in-depth and professional omics data analysis. Software Depends: R (>= 4.2.0) Imports: pcutils (>= 0.2.5), dplyr, readr, ggplot2 (>= 3.2.0), vegan, magrittr, grDevices, RColorBrewer, ggrepel, reshape2, stats, tibble, utils, ggpubr, patchwork, ggnewscale, ade4, scales Suggests: picante, httr, NST, permute, aplot, ggfun, pheatmap, MASS, Rtsne, mixOmics, geosphere, phyloseq, phyloseqGraphTest, plotly, umap, Hmisc, minpack.lm, bbmle, snow, foreach, doSNOW, tidytree, ggtree, ggtreeExtra, vctrs, zoo, ape, DESeq2, limma, ALDEx2, Mfuzz, edgeR, methods, randomForest, knitr, rmarkdown, MetaNet, showtext, jsonlite, prettydoc, readxl, stringr, ggExtra, clipr, zetadiv, ggforce, gggenes, mediation Chen Peng <bfzede@gmail.com> Comprehensive R Archive Network (CRAN) Chen Peng [aut, cre] (ORCID: <https://orcid.org/0000-0002-9449-7606>) GPL-3 2026-02-09 application/tgz https://CRAN.R-project.org/package=pctax doi:10.32614/CRAN.package.pctax