sigma: Manipulate SIGMA matrices

In mrgsolve: Simulate from ODE-Based Models

Manipulate SIGMA matrices

Description

The primary function is smat() which can be used to both get the ⁠$SIGMA⁠ matrices out of a model object and to update ⁠$SIGMA⁠ matrices in a model object.

Usage

smat(.x, ...)

## S4 method for signature 'missing'
smat(.x, ...)

## S4 method for signature 'matrix'
smat(.x, ..., labels = list())

## S4 method for signature 'list'
smat(.x, ...)

## S4 method for signature 'sigmalist'
smat(.x, ...)

## S4 method for signature 'mrgmod'
smat(.x, ..., make = FALSE, open = FALSE)

## S4 method for signature 'NULL'
smat(.x, ...)

## S4 method for signature 'mrgsims'
smat(.x, make = FALSE, ...)

Arguments

.x	a matrix, list of matrices or matlist object.
...	passed to other functions, including modMATRIX().
labels	character vector of names for ⁠$SIGMA⁠ elements; must be equal to number of rows/columns in the matrix.
make	logical; if TRUE, matrix list is rendered into a single matrix.
open	passed to merge.list().
x	matlist object.

See Also

dmat(), bmat(), cmat()

Examples

## example("sigma")
mat1 <- matrix(1)
mat2 <- diag(c(1,2))
mat3 <- matrix(c(0.1, 0.002, 0.002, 0.5), 2,2)
mat4 <- dmat(0.1, 0.2, 0.3, 0.4)

smat(mat1)
smat(mat1, mat2, mat3)
smat(A=mat1, B=mat2, C=mat3)

mod <- mrgsolve::house() %>% smat(mat1)

smat(mod)
smat(mod, make=TRUE)

mrgsolve documentation built on Oct. 18, 2024, 5:12 p.m.