This file contains some comments on the differences between the S and R
version of the quantile regression package.

1.  in rq() I use in R the idiom

	m <- eval(m, sys.frame(sys.parent()))

but in S this causes problems in the function rrs.test() so I have
reverted to the more conventional

	m <- eval(m, sys.parent())

If someone could explain this to me, I would be eternally grateful for at
least 10 minutes.

2.  There are several occurances of the  function oldClass() in the Splus
version.  These appear as class() in the R version.  Will R eventually
adopt the PwD conventions?

3.  Documentation files must be converted.  For the moment this involves
converting .sgm  files to .d files for old S style and then conversion
to .Rd for R.  The first step is accomplished by use of sgml2roff obtained
from BTL see directory Sdoc.  And the second step by the R function d2Rd.