Generates the data fits for any variables set for fitting in the shell.

def _make_fits(self):
        """Generates the data fits for any variables set for fitting in the shell."""
        a = self.tests[self.active]
        args = self.curargs
        #We need to generate a fit for the data if there are any fits specified.
        if len(args["fits"]) > 0:
            for fit in list(args["fits"].keys()):
                a.fit(args["independent"], fit, args["fits"][fit], args["threshold"], args["functions"])