Eric,
On Mar 31, 2009, at 10:50 PM, Eric wrote:
I am trying to build a C application where I need to compute some
statistics to take decisions about the direction to give to a user,
knowing his/her habits. Because I used R back at school, I thought I
can use some of his functions in my application, as a shared
library. I reviewed the "Rinternals" and "R extensions" documents,
and decided to give a try to the REmbedded.c file. Compilation and
linking went well. But the execution failed with a "Fatal error: R
home directory is not defined". Does it mean that R has to to be
distributed with my application or, did I miss something in my
readings ?
Yes - you didn't read the 8.1 section of R-ext attentively enough. It
tells you that you need to setup the environment properly and the
easiest way to do that on unix is to run
R CMD yourApp
Clearly, R must be installed in order to use your application, since
your application is using R ;). It is common for the embedding
application to determine the correct settings before starting R (see
the R.app GUI on how to setup the environment on a Mac in a GUI
application [you can still use R CMD though], see for example Rserve
on how to find the R settings from the registry on Windows).
Cheers,
Simon
If that is of any importance, I am working on unix but aim for full
portability (i.e Windows too)
Thanks for any assistance.
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