R: Mixing matrix cells and margins

mm-ergmTerm {ergm} | R Documentation

## Mixing matrix cells and margins

### Description

`attrs` is the rows of the mixing matrix and whose RHS gives that for its columns. A one-sided formula (e.g., `~A` ) is symmetrized (e.g., `A~A` ). A two-sided formula with a dot on one side calculates the margins of the mixing matrix, analogously to `nodefactor` , with `A~.` calculating the row/sender/b1 margins and `.~A` calculating the column/receiver/b2 margins.

### Usage

    # binary: mm(attrs, levels=NULL, levels2=-1)

    # valued: mm(attrs, levels=NULL, levels2=-1, form="sum")

### Arguments

`attrs` | a two-sided formula whose LHS gives the attribute or attribute function (see Specifying Vertex attributes and Levels (`?nodal_attributes`) for details.) for the rows of the mixing matrix and whose RHS gives for its columns. A one-sided formula (e.g., `~A`) is symmetrized (e.g., `A~A`)
`levels` | subset of rows and columns to be used. (See Specifying Vertex attributes and Levels (`?nodal_attributes`) for details.)
`levels2` | which specific cells of the matrix to include
`form` | character how to aggregate tie values in a valued ERGM

### See Also

`ergmTerm` for index of model terms currently visible to the package.

[Package ergm version 4.2.2 Index]