id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
337	psMinimization tol parameter	Paul Price	gusciora@…	"tol is the tolerance for the relative difference, not an absolute difference.

Therefore, lines such as:
        if (currChi2 > newChi2) {
            min->lastDelta = currChi2 - newChi2;
should be:
        if (currChi2 > newChi2) {
            min->lastDelta = (currChi2 - newChi2)/currChi2;"	defect	closed	high		types	unspecified	normal	fixed