Package: lotri Title: A Simple Way to Specify Symmetric, Block Diagonal Matrices Version: 1.0.5 Authors@R: c(person("Matthew L.", "Fidler", , "matthew.fidler@gmail.com", role = c("aut", "cre"), comment = c(ORCID = "0000-0001-8538-6691")), person( given = "Mauricio", family = "Vargas Sepulveda", role = "ctb", email = "m.vargas.sepulveda@gmail.com", comment = c(ORCID = "0000-0003-1017-7574")), person("Bill", "Denney", email="wdenney@humanpredictions.com", role="ctb", comment=c(ORCID="0000-0002-5759-428X"))) Maintainer: Matthew L. Fidler Description: Provides a simple mechanism to specify a symmetric block diagonal matrices (often used for covariance matrices). This is based on the domain specific language implemented in 'nlmixr2' but expanded to create matrices in R generally instead of specifying parts of matrices to estimate. It has expanded to include some matrix manipulation functions that are generally useful for 'rxode2' and 'nlmixr2'. License: GPL (>=2) URL: https://nlmixr2.github.io/lotri/, https://github.com/nlmixr2/lotri BugReports: https://github.com/nlmixr2/lotri/issues Depends: R (>= 3.4.0) Imports: checkmate, crayon, methods, stats, utils Suggests: ggplot2, knitr, Matrix, microbenchmark, rmarkdown, testthat, memuse VignetteBuilder: knitr Biarch: true Config/testthat/edition: 3 Encoding: UTF-8 NeedsCompilation: yes Language: en-US LinkingTo: cpp4r, armadillo4r Config/roxygen2/version: 8.0.0 Repository: https://nlmixr2.r-universe.dev Date/Publication: 2026-05-20 19:24:44 UTC RemoteUrl: https://github.com/nlmixr2/lotri RemoteRef: HEAD RemoteSha: 9466a49b56e9fad2013c0c00c0af516dd70b2ea7 Packaged: 2026-06-24 02:27:49 UTC; root Author: Matthew L. Fidler [aut, cre] (ORCID: ), Mauricio Vargas Sepulveda [ctb] (ORCID: ), Bill Denney [ctb] (ORCID: )