Add directory prefix to analyze functions
Add directory prefix to analyze functions

This allows more flexibility in the naming of the directories that hold
the data to be analyzed. Now, the directories can be named anything,
instead of Sweep<N>. Additionally, directories do not have to be
numbered numerically, e.g., you could keep the data in directories
run-a, run-b, run-c, etc...

tcmoore3/permeability