2002-02-28  Morten Welinder  <terra@diku.dk>

	* src/regression.c (linear_solve): Move rescaling from here...
	(LUPDecomp): ...to here so we save a copy.
	(general_linear_regression): Allocate the permutation matrix with
	the proper size.  (The old size was too big, so no-one really got
	hurt.)

	* src/rangefunc.c (range_minabs, range_maxabs): New functions.

	* src/regression.c (rescale): Don't include "b" in determining the
	scale.  Use range_maxabs.