This is an archive of software for an Rnews article on parametric link functions.
Note that it requires R2.4.0 or greater because of some delicacies of link
handling in the glm make.link function.  Note also that the optimization functions
in pglm.R are rather primative and could be made more robust and conformant with
standard glm practice.  The current versions are meant only as a proof of concept.

The Rnews figures can be recreated using the Fig[1234].R files.  Note that Fig3.pdf
takes a few minutes to make since there needs to be a fairly extensive evaluation
of the likelihood on a 40 by 40 rectangular grid.

Code to recreate the figures:

-rw-r--r--   1 roger  roger    811 Aug 30 07:15 Fig1.R
-rw-r--r--   1 roger  roger   5525 Aug 30 07:19 Fig1.pdf
-rw-r--r--   1 roger  roger    563 Aug 30 07:16 Fig2.R
-rw-r--r--   1 roger  roger  41783 Aug 30 07:19 Fig2.pdf
-rw-r--r--   1 roger  roger   1188 Aug 30 07:18 Fig3.R
-rw-r--r--   1 roger  roger  30811 Aug 30 07:32 Fig3.pdf
-rw-r--r--   1 roger  roger    493 Aug 29 12:28 Fig4.R
-rw-r--r--   1 roger  roger   8606 Aug 30 07:34 Fig4.pdf

The software:

-rw-r--r--   1 roger  roger   1744 Aug 29 12:28 Plinks.R
-rw-r--r--   1 roger  roger   2336 Aug 29 12:28 pglm.R
-rw-r--r--   1 roger  roger    436 Aug 29 12:28 spiral.R
-rw-r--r--   1 roger  roger    253 Aug 29 12:28 stest.R
