Why priors are in lotri | The syntax | What a prior can be attached to | Population parameters | A single between subject variability term | A whole covariance block | Degrees of freedom for an omega block | A prior on the omega values themselves | One joint block over thetas and omega elements | One block at a time | The normal prior shorthand | More than one parameter | Transformations | Zero variance | Distribution names | Why dt() is not studentT() | The supported distributions | Bounds and truncated priors | What else is checked | Getting the priors back out | Using this downstream | A prior must never be silently ignored
This package is considered a duplicate. The official version of this package is found at:https://nlmixr2.r-universe.dev/lotri
Package: lotri 1.0.5
Matthew L. Fidler
lotri: A Simple Way to Specify Symmetric, Block Diagonal Matrices
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'.
Authors:
lotri_1.0.5.tar.gz
lotri_1.0.5.zip(r-4.7-x86_64)lotri_1.0.5.zip(r-4.7-arm64)lotri_1.0.5.zip(r-4.6-x86_64)lotri_1.0.5.zip(r-4.6-arm64)
lotri_1.0.5.tar.gz(r-4.7-arm64)lotri_1.0.5.tar.gz(r-4.7-x86_64)lotri_1.0.5.tar.gz(r-4.6-arm64)lotri_1.0.5.tar.gz(r-4.6-x86_64)
lotri_1.0.5.tgz(r-4.6-emscripten)
manual.pdf |manual.html✨
DESCRIPTION |NEWS
card.svg |card.png
lotri/json (API)
| # Install 'lotri' in R: |
| install.packages('lotri', repos = c('https://cran.r-universe.dev', 'https://cloud.r-project.org')) |
Bug tracker:https://github.com/nlmixr2/lotri/issues
Pkgdown/docs site:https://nlmixr2.github.io
Uses libs:
Last updated from:2b971a28e0. Checks:10 OK. Indexed: no.
| Target | Result | Time | Files | Syslog |
|---|---|---|---|---|
| linux-devel-arm64 | OK | 154 | ||
| linux-devel-x86_64 | OK | 136 | ||
| source / vignettes | OK | 211 | ||
| linux-release-arm64 | OK | 111 | ||
| linux-release-x86_64 | OK | 133 | ||
| windows-devel-arm64 | OK | 259 | ||
| windows-devel-x86_64 | OK | 173 | ||
| windows-release-arm64 | OK | 208 | ||
| windows-release-x86_64 | OK | 126 | ||
| wasm-release | OK | 122 |
Exports:.lotriPointersas.lotrilotrilotriAsExpressionlotriBaseConditionlotriDataFrameToLotriExpressionlotriEstlotriIsBlockMatlotriIsSamelotriMatlotriMatInvlotriNearPDlotriPriorDistslotriSameBreaklotriSameMaplotriSeprcm
Dependencies:armadillo4rbackportscheckmatecpp4rcrayon
Prior distributions in lotri
Last update: 2026-09-11
Started: 2026-09-11
Repeated blocks with same() in lotri
What same() is for | The rules | How it is stored: the condition column | Reading the column | Round trips | same() versus cnd(same = n)
Last update: 2026-09-11
Started: 2026-09-11
Lotri Motivation
Motivation | Creating lists of matrices with attached properties | Combining symmetric named matrices
Last update: 2022-06-18
Started: 2019-05-14
Readme and manuals
Help Manual
| Help page | Topics |
|---|---|
| As lower triangular matrix | as.lotri as.lotri.data.frame as.lotri.default as.lotri.matrix |
| Easily Specify block-diagonal matrices with lower triangular info | lotri |
| Change a matrix or lotri matrix to a lotri expression | lotriAsExpression |
| Work with `same()` (NONMEM `BLOCK SAME`) blocks in a lotri data frame | lotriBaseCondition lotriIsSame lotriSameBreak lotriSameMap |
| Convert a lotri data frame to a lotri expression | lotriDataFrameToLotriExpression |
| Extract or remove lotri estimate data frame from lotri object | lotriEst |
| Determine if the matrix is a block matrix | lotriIsBlockMat |
| Create a matrix from a list of matrices | lotriMat |
| Converts a matrix into a list of block matrices | lotriMatInv |
| C++ implementation of Matrix's nearPD | lotriNearPD |
| Return the prior distributions supported by `lotri()` | lotriPriorDists |
| Separate a lotri matrix into above and below lotri matrices | lotriSep |
| Use the RCM algorithm to permute to banded matrix | rcm |