A simple, 5-column data frame that can be used to generate graph edges.
edge_list_2
A data frame with 19 rows and 5 variables:
integer values that state the node ID values where an edge starts
integer values that state the node ID values where an edge terminates
a grouping variable of either a, b, or c
a randomized set of numeric values between 0 and 10
a randomized set of numeric values between 0 and 10