R: Filtering on arbitrary one-term model

F-ergmTerm {ergm} | R Documentation

## Filtering on arbitrary one-term model

### Description

Evaluates the given `formula` on a network constructed by taking y and removing any edges for which f[i,j] (y[i,j])=0 .

### Usage

    # binary: F(formula, filter)

### Arguments

`formula` | a one-sided `ergm()`-style formula with the terms to be evaluated
`filter` | must contain one binary `ergm` term, with the following properties: dyadic independence; dyadwise contribution of 0 for a 0-valued dyad. Formally, this means that it is expressable as sum[i,j] f[i,j] (y[i,j]), where for all i, j, and y, f_{i,j}(y_{i,j}) for which f[i,j] (0)=0. For convenience, the term in specified can be a part of a simple logical or comparison operation: (e.g., `~!nodematch("A")` or `~abs("X")>3`), which filters on f[i,j] (y[i,j]) %OP% 0 instead.

### See Also

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

[Package ergm version 4.2.1 Index]