NEWS.md

In nlmixrdevelopment/lotri: A Simple Way to Specify Symmetric, Block Diagonal Matrices

lotri development version

• Can convert lotri objects to data-frames similar to the internal data frame used in nlmixr(); These can then be converted back with as.lotri()

• Added the ability to add estimates to a lotri object. These estimates are an attached data.frame to the original lotri matrix. You can extract them or drop them with the function lotriEst()

• Allow specifying fixed components in lotri() matrices.

• Add cov, cor, sd, var, and chol options for matrix specification.

• Add function lotriMatInv() which takes a symmetric block matrix and converts it into a list of matrices. An sort of inverse operation of lotriMatInv()

• Add error for lotri(~c(40))

lotri 0.3.1

• Change errors/warnings to use call.=FALSE or equivalent.
• Refactor C code to reduce complexity
• Change C code to play nicely with rchk
• Allow lotriMat to mix named and unnamed matrices; When mixed, an unnamed matrix will be returned.

lotri 0.2.2

• Bug fix for conditional matrices
• Now accessing $lower and $upper gives default values even if it wasn't specified.
• Can change the default conditional matrix to some other value like "id"
• Can add properties to matrx->lotri by as.lotri(matrix, lower=3, default="id")
• Dropped Matrix import and added lotriMat to create banded matrices (faster than Matrix for now included repeated matrices with list(matrix, rep)).
• Bug fix for default properties when both upper and lower bounds are specified

lotri 0.2.1

• Added conditional matrix specification |; Returns a list of matrices where each condition is the name of the matrix returned.
• The conditional matrix can also include properties ie | id(lower=c(eta1=3))
• Added a NEWS.md file to track changes to the package.

lotri 0.1.1

• Initial Release

nlmixrdevelopment/lotri documentation built on April 22, 2021, 2:21 a.m.