R Function	Fortran Subroutine(s) called		SRC file
~~~~~~~~~~	~~~~~~~~~~~~~~~~~~~~~~~~~~~~            ~~~~~~~~

fracdiff()	fracdf	(main routine)			src/fdcore.f
		fdhpq	("hess")			src/fdhess.f
		fdcov	("cov" and "cor" from hess etc)	   "

fracdiff.var	fdcom	(init common blocks)		   "
		fdcov	 <see above >			   "

fracdiff.sim	fdsim					src/fdsim.f


---
see also ./src/ftn-struc
---      ~~~~~~~~~~~~~~~
