def agitate(self):
for (varName, var) in self.permuteVars.iteritems():<EOL><INDENT>var.agitate()<EOL><DEDENT>self.newPosition()<EOL>
Agitate this particle so that it is likely to go to a new position.
        Every time agitate is called, the particle is jiggled an even greater
        amount.

        Parameters:
        --------------------------------------------------------------
        retval:               None