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lotri  

A Simple Way to Specify Symmetric, Block Diagonal Matrices
View on CRAN: Click here


Download and install lotri package within the R console
Install from CRAN:
install.packages("lotri")

Install from Github:
library("remotes")
install_github("cran/lotri")

Install by package version:
library("remotes")
install_version("lotri", "1.0.2")



Attach the package and use:
library("lotri")
Maintained by
Matthew L. Fidler
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2019-05-14
Latest Update: 2025-07-18
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.
How to cite:
Matthew L. Fidler (2019). lotri: A Simple Way to Specify Symmetric, Block Diagonal Matrices. R package version 1.0.2, https://cran.r-project.org/web/packages/lotri. Accessed 26 Aug. 2026.
Previous versions and publish date:
(2026-07-09 07:54), 0.1.1 (2019-05-14 16:00), 0.2.1 (2020-02-12 13:10), 0.2.2 (2020-05-29 23:20), 0.3.1 (2021-01-05 16:50), 0.4.0 (2022-04-15 21:12), 0.4.1 (2022-04-21 13:30), 0.4.2 (2022-06-18 18:50), 0.4.3 (2023-03-20 19:20), 1.0.0 (2024-09-18 06:50), 1.0.1 (2025-07-18 07:00), 1.0.2 (2025-08-29 18:00), 1.0.3 (2026-03-11 10:20)
Other packages that cited lotri R package
View lotri citation profile
Other R packages that lotri depends, imports, suggests or enhances
Complete documentation for lotri
Functions, R codes and Examples using the lotri R package
Some associated functions: as.lotri . lotri . lotriDataFrameToLotriExpression . lotriEst . lotriMat . lotriMatInv . lotriSep . 
Some associated R codes: as.data.frame.R . as.expression.R . as.lotri.R . err.R . lotri.R . lotriMatInv.R . print.R . thetaEst.R .  Full lotri package functions and examples
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