Knowledge Space Theory Input/Output R package kstIO version 0.5-1 Knowledge space theory by Doignon and Falmagne (1999) <doi:10.1007/978-3-642-58625-5> is a set- and order-theoretical framework which proposes mathematical formalisms to operationalize knowledge structures in a particular domain. The 'kstIO' package provides basic functionalities to read and write KST data from/to files to be used together with the 'kst', 'kstMatrix', 'pks', or 'DAKS' packages. Software Depends: R (>= 4.4.0), sets, kstMatrix (>= 2.3-0), openxlsx2, readODS, tools Cord Hockemeyer <cord.hockemeyer@uni-graz.at> Comprehensive R Archive Network (CRAN) Cord Hockemeyer [aut, cre] GPL (>= 3) 2026-04-11 application/tgz https://CRAN.R-project.org/package=kstIO doi:10.32614/CRAN.package.kstIO