absdiff-ergmTerm {ergm}

Absolute difference in nodal attribute

Description

This term adds one network statistic to the model equaling the sum of abs(attr[i]-attr[j])^pow for all edges ⁠(i,j)⁠ in the network.

Usage

# binary: absdiff(attr,
#                 pow=1)

# valued: absdiff(attr,
#                 pow=1,
#                 form="sum")

Arguments

attr

a vertex attribute specification (see Specifying Vertex attributes and Levels (?nodal_attributes) for details.)

pow

power to which to take the absolute difference

form

character how to aggregate tie values in a valued ERGM

Note

ergm versions 3.9.4 and earlier used different arguments for this term. See ergm-options for how to invoke the old behaviour.

See Also

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

Keywords

directed, dyad-independent, quantitative nodal attribute, undirected, binary, valued