from, to: vectors of distinct integers or +Inf , for to . If one of the vectors has length 1, it is recycled to the length of the other. Otherwise, they must have the same length.
byarg: specifies a vertex attribute (see Specifying Vertex attributes and Levels (?nodal_attributes) for details.). If specified, then separate degree statistics are calculated for nodes having each separate value of the attribute.
emptyval: can be used to specify the value returned if the network does not have any actors with degree in the specified range. This is, technically, an arbitrary value, but it should not have a substantial effect unless a non-negligible fraction of networks at the parameter configuration of interest has no actors with specified degree.
Details
This term adds one network statistic to the model for each element of from (or to ); the i th such statistic equals the average, among all ties incident on nodes with degree greater than or equal to from[i] but strictly less than to[i] , of the amount of time elapsed since the tie's formation. The optional argument
See Also
ergmTerm for index of model terms currently visible to the package.