The primary function is `omat`

that can be used to both get the
`$OMEGA`

matrices out of a model object and to update `$OMEGA`

matrices in a model object.

## Usage

```
omat(.x, ...)
# S4 method for missing
omat(.x, ...)
# S4 method for matrix
omat(.x, ..., labels = list())
# S4 method for `NULL`
omat(.x, ...)
# S4 method for list
omat(.x, ...)
# S4 method for omegalist
omat(.x, ...)
# S4 method for mrgmod
omat(.x, ..., make = FALSE, open = FALSE)
# S4 method for mrgsims
omat(.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

`$OMEGA`

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