These Tcl scripts for VMD provide useful functionality for applying the 
implicit ligand sampling analysis to a protein.

* pmfutils.tcl: contains Tcl utility functions necessary for performing the 
analysis in VMD.

* example-ils.tcl: a sample script which will perform the implicit ligand 
sampling analysis on a given a DCD simulation. This script can be run from 
a UNIX-like terminal command-line using:

  vmd -dispdev text -e example-ils.tcl



