FITS (Flexible Image Transport System) Utilities R package FITSio version 2.1-6 CRAN Task View: ChemPhys (https://CRAN.R-project.org/view=ChemPhys) Utilities to read and write files in the FITS (Flexible Image Transport System) format, a standard format in astronomy (see e.g. <https://en.wikipedia.org/wiki/FITS> for more information). Present low-level routines allow: reading, parsing, and modifying FITS headers; reading FITS images (multi-dimensional arrays); reading FITS binary and ASCII tables; and writing FITS images (multi-dimensional arrays). Higher-level functions allow: reading files composed of one or more headers and a single (perhaps multidimensional) image or single table; reading tables into data frames; generating vectors for image array axes; scaling and writing images as 16-bit integers. Known incompletenesses are reading random group extensions, as well as complex and array descriptor data types in binary tables. Software Depends: R (>= 3.0.0) Andrew Harris <harris@astro.umd.edu> Comprehensive R Archive Network (CRAN) Andrew Harris GPL (>= 2) 2021-04-03 application/tgz https://CRAN.R-project.org/package=FITSio doi:10.32614/CRAN.package.FITSio