Optimal Transport Based Testing in Factorial Design R package FDOTT version 0.1.0 Perform optimal transport based tests in factorial designs as introduced in Groppe et al. (2025) <doi:10.48550/arXiv.2509.13970> via the FDOTT() function. These tests are inspired by ANOVA and its nonparametric counterparts. They allow for testing linear relationships in factorial designs between finitely supported probability measures on a metric space. Such relationships include equality of all measures (no treatment effect), interaction effects between a number of factors, as well as main and simple factor effects. Software Depends: R (>= 4.1) Imports: Rcpp (>= 1.0.12), ROI, future.apply, progressr, transport, slam, rrapply, stats, methods LinkingTo: Rcpp, RcppArmadillo Suggests: ROI.plugin.glpk, future Michel Groppe <michel.groppe@uni-goettingen.de> Comprehensive R Archive Network (CRAN) Michel Groppe [aut, cre], Linus Niemöller [aut] GPL (>= 3) 2025-10-01 application/tgz https://CRAN.R-project.org/package=FDOTT doi:10.32614/CRAN.package.FDOTT