I agree. A separate installer for PL/R would be the first thing to
create. Am I right that that would not be very difficult? After that,
though, I would very much like to have a *combined* version, with PL/R
and PostGIS both enabled. I am not sure how difficult that would be,
but, as I said, it would be a marvelous example of Open Source software
cooperation. The additional packages Mike mentioned don't have to be
installed prior to installing PL/R; you can install them in the regular
way in R (R INSTALL), and an existing PostgreSQL database with PL/R will
recognise them after a restart.
BTW: deldir was a major reason for me to experimnt with a combined
version: the power of voronoi diagrams in a PostGIS database!
Jan
Mike Leahy wrote:
David/Jan:
Although PostGIS and PL/R can be complimentary tools, I think a separate
installer (for now at least) would make the most sense for PL/R. At
least that way there is still the option for other users to install PL/R
without PostGIS, and vice-versa.
At the same time, however, I can see how a including PL/R as an option
in the PostGIS installer could be useful - particularly if a set of
pre-defined functions were included with the setup that made use of PL/R
for spatial statistical operations within PostGIS. But this might get a
bit complicated, considering the requirements involved (e.g., having R
installed, as well as packages installed in R - such as deldir for
making voronoi polygons).
Mike
TECHER David wrote:
Hi Jan,
Before I made a mistake, all you want is only a win32-installer for PL/R?
because I think you know that's postgis win32-installer already exist?
See http://www.postgis.org/download/windows/
--david;
Jan Hartmann a écrit :
Hi folks (sorry for crossposting),
Joe Conway just announced that PL/R will soon be available for
Windows. See the thread starting at:
http://gborg.postgresql.org/pipermail/plr-general/2007-June/000235.html
PL/R is an implementation of the statistical package R within
PostgreSQL. See:
http://www.joeconway.com/plr/
http://www.r-project.org
It's installed the same way as postGIS, but until now only a Linux
version was available. I have them both enabled on my server at SARA
computing center, and the functionality is unbelievable. My own
organisation, however, doesn't allow me to install Linux servers, and
even if they did, neither staff nor students would be willing or even
able to work with them. I guess this is not a unique situation, so
this Windows port is really important. Moreover, a PostgreSQl
implementation with full GIS and statistical functionality is
something that doesn't exist in the commercial world as far as I know.
An easy installable Windows version would IMO really be a showpiece
for Open Source software. I would really appreciate if people in the
know on both these lists would put their heads together to implement
this. I don't really know much about Windows installers, but my
feeling is that it is not enormously difficult.
Regards,
Jan Hartmann
Dr. J. Hartmann
Department of Geography
University of Amsterdam
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