Constructor of the 'natCauslist' class
A new 'natCauslist' object
a vector with the names of the nodes in t_0
a vector with the names of the nodes without the appended "_t_0"
cl
List of causal units
ordering
String vector defining the order of the nodes in t_0
ordering
String vector defining the order of the nodes without the appended "_t_0"
The causal lists will be the base of the positions and the velocities in the pso part of the algorithm. They will not have the same structure as their binary counterparts, but their class skeleton will serve as a base.