id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
84	psMinimizeChi2() arguments	gusciora@…	eugene	"The psMinimizeChi2() function minimizes a user-supplied function f() over a
set of M data points.  The function f() requires as input a vector specifying
the parameters of whatever function it performs; it also requires as input a
vector which contains the (possibly multi-dimensional) data-point it
operates on.  Let's say that data vector has N elements.

The argument ""domain"" to psMinimizeChi2() must be of type psMatrix, since it
will hold M N-element vectors.  Currently, ""domain"" is of type psVector.

As far as I can tell, the arguments ""data"" and ""errors"" are correctly
specified: they are M-element vectors.  Is that correct?

Also, an argument to psMinimizeChi2() must be added to specify the
user-supplied function which calculates the derivative of f()."	defect	closed	high		PSLib SDRS	unspecified	normal	fixed	IPP-doc