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Original S-plus interface and Fortran code by Burkhard Seiffert, Biostat Uni Zurich, April 1995.
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The port of the lpepa and lpridge to R has been done by Martin Maechler, see
DESCRIPTION
. -
A "link" (to Martin Maechler's files) of the original fortran routines and S-plus interface are in the R-forge repository https://r-forge.r-project.org/scm/viewvc.php/pkg/lpridge/?root=curves-etc (source via
svn checkout svn://svn.r-forge.r-project.org/svnroot/curves-etc/pkg/lpridge
)
in sub directory
Orig/
but not in the package sources (lpridge_<ver>.tar.gz
) on CRAN.
-
MM did get the original sources in April 1995 as shar files, separately for
lpepa
andlpridge
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found there were too many communalities to keep these separate.
-
one of the relatively first CRAN packages, May 18, 2001:
lpridge_1.0-0.tar.gz