Sakai Sequential Relation Analysis R package SSRA version 0.1-1 'Takea Semantic Structure Analysis' (TSSA) and 'Sakai Sequential Relation Analysis' (SSRA) for polytomous items. Package includes functions for generating a sequential relation table and a treegram to visualize the sequential relations between pairs of items. Software Depends: R (>= 3.2.0) Imports: shape, stringr Takuya Yanagida <takuya.yanagida@univie.ac.at> Comprehensive R Archive Network (CRAN) Takuya Yanagida [cre, aut], Keiko Sakai [aut] GPL-3 2024-10-17 application/tgz https://CRAN.R-project.org/package=SSRA doi:10.32614/CRAN.package.SSRA