Generate the Pre (|v| by |u|) matrix for the SPN. This gives the edges from P to T (input arcs) in the bipartite network.
spn_Pre(spn_P, spn_T)
| spn_P | set of places (P) (see details) |
|---|---|
| spn_T | set of transitions (T) (see details) |
a matrix of type dgCMatrix-class
The places (spn_P) object is generated from one of the following:
spn_P_lifecycle_node, spn_P_lifecycle_network,
spn_P_epiSIS_node, spn_P_epiSIS_network,
spn_P_epiSEIR_node, or spn_P_epiSEIR_network.
The set of transitions (spn_T) is generated from one of the following:
spn_T_lifecycle_node, spn_T_lifecycle_network,
spn_T_epiSIS_node, spn_T_epiSIS_network,
spn_T_epiSEIR_node, spn_T_epiSEIR_network.