needs concerning Rcpp is the QPL. This way he retains
control over the evolution of the source code.
By far not one of my favourite licences, but that's the licence he's
been looking for all along.
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ake huge sense
to hijack it. So here you protect the author.
But how is this R related?
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ons
to OCaml).
Hopefully, this lays down a foundation on which one could import R
functionalities, libraries and packages to OCaml.
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re these ones:
http://rwmj.wordpress.com/2009/03/31/using-autoconf-for-ocaml-projects/
http://forge.ocamlcore.org/projects/Focaml-autoconf/
Anything similar hanging out there for R?
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t autoloading, I should simply remove the
.AutoloadEnv environment? Or keep it empty?
-2- How is this environment populated at startup? How can I ensure that
it be empty?
| And concerning datasets, how do you avoid loading them?
Maybe by not loading the datasets package? But
ng "loadedNamespaces()");;
- : string list = ["base"]
# R.strings_of_t (R.eval_string "search()");;
- : string list = [".GlobalEnv"; "Autoloads"; "package:base"]
#
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}
The code above happens before Rf_initEmbeddedR in littler.
So I gather that just setting R_DEFAULT_PACKAGES to NULL should be OK.
But then, what is the rather complicated stuff in the autoload()
function in littler.c for?
And concerning datasets, how do you avoid loadi
point in time of bringing the
libRmath.so functionality to the part of my library that embeds R, as
you pointed out.
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uot;*** loaded '%s'\n", argv[0]);
set_seed(123, 456);
N01_kind = AHRENS_DIETER;
printf("one normal %f\n", norm_rand());
set_seed(123, 456);
N01_kind = BOX_MULLER;
printf("normal via BM %f\n", norm_
Guillaume Yziquel a écrit :
Dirk Eddelbuettel a écrit :
Salut Guilluame,
| > val norm_rand : unit -> float
| > Random variates from the standard normal distribution. Bug:
currently systematically returns -8.77332116900134373.
| | Any idea as to why the function systematically re
..): What's the big
difference between using the R mathematical library in standalone mode
and not in standalone mode? How does it translate in terms of C
directives and linking modalities? I've noticed the MATHLIB_STANDALONE
macro, but I do not know how I should use it...
All the bes
All the best,
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Guillaume Yziquel a écrit :
Simon Urbanek a écrit :
If you have suggestions for extending the API, feel free to post them
with exact explanations how in general that extensions could be useful
(general is the key word here - I think so far it was rather to hack
around your way of
with other OCaml code, within one single real thread.
Therefore I have to implement the commutation context somewhere in the
evaluation mechanism of R itself.
The API doesn't support that, I guess.
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_
Guillaume Yziquel a écrit :
Hello.
I'm still working on my OCaml-R binding and I get a segfault in the
GetNewPage() function of memory.c.
Stupid issue that took me some time to solve: R wasn't initialised. (It
wasn't easy to solve because I'm trying to figure out
y background information or pointers helping
me to understand what is precisely supposed to be going on in the memory
allocation code would also be very much appreciated.
All the best,
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ymbol
assignment is a side-effect.
Is there an API-compliant way to handle this, and make data structures
as immutable as possible?
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. Isn't there a way to
create a tag without using install over and over? A macro that simply
sets the tag to whatever CHARSXP might be useful?
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https://
Guillaume Yziquel a écrit :
Guillaume Yziquel a écrit :
One last thing, concerning the use of promises. If I do install,
findVar, without forcing the resulting promise, and then construct the
call, I get a failure:
Replacing findfun by findvar works in this specific case. See below.
Could
Guillaume Yziquel a écrit :
One last thing, concerning the use of promises. If I do install,
findVar, without forcing the resulting promise, and then construct the
call, I get a failure:
# R.eval_langsxp (R.langsxp_of_list [(R.symbol "str"); (R.symbol
"lm")] 2);;
Simon Urbanek a écrit :
On Nov 30, 2009, at 16:07 , Guillaume Yziquel wrote:
Simon Urbanek a écrit :
And it goes then to my other question: How can you pass to eval a
LANGSXP where the CAR is an *anonymous* function, no SYMSXP involved?
You just pass it as value of the call. I suspect the
ll have a look at the code snippet you gave, since I do not understand
why it doesn't fail the same way mine does.
Thanks a lot.
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in
the same spirit as the link below, which I really entice you to read:
http://ocsigen.org/eliom/manual/1.2.0/1#p1baseprinciples
Statically typing the internal structure of assembled sexps is no
different than statically typing XHTML.
Glad that we're heading somewhere...
All the best
aying "anonymous R objects can be passed to functions". My
question is:
can you construct a LANGSXP in C/Python/rpy from R objects and an
anonymous R closure, the closure being available from C as a SEXP
closure. Can you write a function
SEXP my_langsxp (SEXP closure, SEXP arg
f the programmer.
Please understand that I take no joy and no fun in being a pain.
If you force me to write a binding that wouldn't be type safe, it would
be unused. This is simply not acceptable to me: I am unfortunately not
willing to waste my
the environment of a closure is fine, for
instance, but I'd like to execute a closure directly, and eventually
be able to construct R closure from OCaml functions).
Rpy2 can do a lot of that, and probably so can JRI.
An anonymous closure to anonymous closure mapping? Could you point
Simon Urbanek a écrit :
On Nov 28, 2009, at 7:50 PM, Guillaume Yziquel wrote:
FWIW what I think you should be really looking at is
R_PreserveObject/R_ReleaseObject.
OK. Thanks.
I would suggest looking at the many other R embeddings in other languages that
already exist since I don't
Uwe Ligges a écrit :
Guillaume Yziquel wrote:
Hi.
I've patched Dirk Eddelbuettel's Debian package of R, namely r-base, in
order to make hidden symbols of the library libR.so available is now
available:
http://yziquel.homelinux.org/debian/pool/main/r/r-base/
For instance, the
hat I'll adapt.
Thanks a lot.
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monothreaded case.)
All the best,
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able.
All the best,
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afile");
(NULL, ARG "compressed"); (NULL, ARG "envhook")]);
prom_env = NULL})])
# ml_eval x;;
function (formula, data, subset, weights, na.action, method = "qr",
model = TRUE, x = FALSE, y = FALSE, qr = TRUE, singular.ok = TRUE,
contrasts = NULL
own code. It require mkPROMISE. No C entry points. Which requires
GET_FREE_NODE from memory.c. Which does not have C entry points in libR.so.
This is a pain. I'd rather not have to reimplement the interpreter in
OCaml. I simply want to bind to hidden symbols.
Suggestions?
--
Guillaume Yziquel a écrit :
Unfortunately, or fortunately, (depends on the point of view), I've
looked at symbols of libR.so (I'm on a Debian box, with Debian R), and I
fail to see such symbols exported.
How could I get to bind to these functions, without having to compile my
s
I
fail to see such symbols exported.
How could I get to bind to these functions, without having to compile my
stuff and R at the same time?
All the best,
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as perhaps a bit brutal.
All the best,
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Simon Urbanek a écrit :
On Nov 21, 2009, at 4:12 PM, Guillaume Yziquel wrote:
Hello.
I've been looking at vecsexps for my binding.
Concerning strings, I'm wondering: are they supposed to be
null-delimited?
Yes, they are null-delimited when you create/access them.
OK. Fair e
sexps? I'm thinking of CHARSXPs and INTSXPs for the moment...
All the best,
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and the child SYMSXP) give different
addresses...
So I'm wondering: what's the structure of SYMSXPs? Is its sym_value
always a SYMSXP? I guess not. When its sym_value is a SYMSXP, is it
pointing to itself?
All the best,
Guillaume Yziquel.
# t;;
- : R.Internal.t =
#
Duncan Murdoch a écrit :
On 17/11/2009 9:31 PM, Guillaume Yziquel wrote:
Guillaume Yziquel a écrit :
Hello.
I've been trying to wrap up the R_NilValue into OCaml-R. I
nevertheless get a segfault.
Is the value of R_NilValue (I mean the address in the R_NilValue
pointer located i
Guillaume Yziquel a écrit :
Guillaume Yziquel a écrit :
Hello.
I've been trying to wrap up the R_NilValue into OCaml-R. I
nevertheless get a segfault.
Is the value of R_NilValue (I mean the address in the R_NilValue pointer
located in the uninitialized data section - i.e. the BSS se
Guillaume Yziquel a écrit :
Hello.
I've been trying to wrap up the R_NilValue into OCaml-R. I nevertheless
get a segfault.
Is the value of R_NilValue (I mean the address in the R_NilValue pointer
located in the uninitialized data section - i.e. the BSS section) set up
*after* the
ectives in Rinternals.h, and I'm
wondering whether or not that might be an issue.
All the best,
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ocamlr.html
http://yziquel.homelinux.org/topos/debian-repository.html
http://yziquel.homelinux.org/debian/pool/main/o/ocaml-r/
when my laptop's up, wifi working, et ceterae. All in french for now,
and documentation is not up to date... That will come.
OCaml-R it
Dirk Eddelbuettel a écrit :
On 14 November 2009 at 16:45, Guillaume Yziquel wrote:
| I've had a look at R-exts.pdf, but R_tryEval is not documented.
|
| Could someone please point me to relevant documentation,
I don't think it is documented as it is not part of the API -- see f
Romain Francois a écrit :
You can also see it in action in jri (in the Rengine.c file).
http://www.rforge.net/JRI/
Romain
Thanks. I'll have a look.
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ion and all related entry points in libR.so.
I've had a look at R-exts.pdf, but R_tryEval is not documented.
Could someone please point me to relevant documentation, or the relevant
part of the R source code?
All the best,
--
Guillaume Yzique
Simon Urbanek a écrit :
On Oct 10, 2009, at 3:53 PM, Guillaume Yziquel wrote:
However, as it now stands, the binding is not fully functional: When an
OCaml program is compiled with this binding, to generate, say,
myprog.byte, it is necessary to run
R CMD ./myprog.byte
in order for the
me to
the right documentation?
All the best,
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ml
http://yziquel.homelinux.org/debian/pool/main/o/ocaml-r/
Guillaume Yziquel a écrit :
Hello.
I've been pulling together a Debian package out of Maxence Guesdon's
OCaml bindings for R. Will be available from my website as soon as I get
my router to obey me. Here's Maxence's bindi
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