callaway.traits.game() was renamed to sample_traits_callaway() to create a more
consistent API.
Arguments
- nodes
The number of vertices in the graph.
- types
The number of different vertex types.
- edge.per.step
The number of edges to add to the graph per time step.
- type.dist
The distribution of the vertex types. This is assumed to be stationary in time.
- pref.matrix
A matrix giving the preferences of the given vertex types. These should be probabilities, i.e. numbers between zero and one.
- directed
Logical constant, whether to generate directed graphs.
