Query and Analyse the 'EWAS Atlas' Database R package EWAScaller version 0.1.0 Provides a client for the 'EWAS Atlas' web services (<https://ngdc.cncb.ac.cn/ewas/>; Li et al. (2019) <doi:10.1093/nar/gky1027>), allowing users to query epigenome-wide association study (EWAS) data by CpG (cytosine-phosphate-guanine) probe identifier, gene symbol, or genomic region, and to run trait, Gene Ontology, KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway, and genomic location enrichment analyses on a set of CpG probes. Query functions support concurrent, rate-limited requests to the remote service. Results are returned as tidy data frames with dedicated summary and plotting methods, including word clouds of enriched 'EWAS Atlas' trait terms. Software Depends: R (>= 4.1.0) Imports: httr, jsonlite, digest, parallel, ggplot2, ggwordcloud, stats, utils Suggests: testthat (>= 3.0.0), knitr, rmarkdown Saadat Abu <saadatabu1996@gmail.com> Comprehensive R Archive Network (CRAN) Saadat Abu [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=EWAScaller/LICENSE) 2026-08-05 application/tgz https://CRAN.R-project.org/package=EWAScaller doi:10.32614/CRAN.package.EWAScaller