Tools and Operations for Reading, Writing, Viewing, and Manipulating SKIFTI Files R package skiftiTools version 0.1.0 SKIFTI files contain brain imaging data in coordinates across Tract Based Spatial Statistics (TBSS) skeleton, which represent the brain white matter intensity values. 'skiftiTools' provides a unified environment for reading, writing, visualizing and manipulating SKIFTI-format data. It supports the "subsetting", "concatenating", and using data as data.frame for R statistical functions. The SKIFTI data is structured for convenient access to the data and metadata, and includes support for visualizations. For more information see Merisaari et al. (2024) <doi:10.57736/87d2-0608>. Software Depends: R (>= 4.2.0) Imports: RNifti, stringr, R.utils, rmarchingcubes, Rvcg, png, rgl, oce, abind, methods, s2dv Suggests: knitr, rmarkdown, testthat (>= 3.0.0) Ilkka Suuronen <ilksuu@utu.fi> Comprehensive R Archive Network (CRAN) Harri Merisaari [aut] (ORCID: <https://orcid.org/0000-0002-8515-5399>), Ilkka Suuronen [cre] (ORCID: <https://orcid.org/0009-0001-6516-4116>) GPL-3 2025-10-16 application/tgz https://CRAN.R-project.org/package=skiftiTools doi:10.32614/CRAN.package.skiftiTools