Displaying 20 results from an estimated 300 matches similar to: "R_NilValue and segfault."
2009 Nov 28
1
PROTECT and OCaml GC.
Hello.
In the writing of my OCaml-R binding, I'm sort of confused when it comes
to the use of the PROTECT and UNPROTECT macros.
Basically, I have C stub functions that are in charge of calling R for
everything. Here's a simple example:
> CAMLprim value r_findvar (value symbol) {
> /* The findVar function is defined in envir.c. It looks up a symbol
> in an environment.
2010 Jan 07
1
Segfault in GetNewPage, memory.c.
Hello.
I'm still working on my OCaml-R binding and I get a segfault in the
GetNewPage() function of memory.c.
For the record, the OCaml-R binding seems to work fine with OCaml
bytecode. The segfault here is the main issue I have with OCaml native
code. OCaml-R can be found on the following links.
Source code:
http://yziquel.homelinux.org/gitweb/?p=ocaml-r.git;a=summary
2009 Nov 16
0
OCaml-R and xts works!
Hi.
I've managed to make a *very* simple wrapper around the xts library for
R into OCaml. (Need to be downloaded from CRAN for OCaml users, but I
expect other wrapping to be fairly similar...). The good, good, good
thing (from my humble point of view) is that all loading is done
statically: Loading the R interpreter is done statically. Loading the
xts library is done statically... etc...
2005 Jul 19
0
build of REventLoop package crashes with 2.1 due tosyntax error in Defn.h (PR#8017)
Full_Name: Richard Boyce
Version: 2.1.-1
OS: Debian testing/unstable
Submission from: (NULL) (128.95.123.29)
While building a custom package using a modified version of Duncan's REventLoop
with R version 2.1 (Debian package r-base, r-base-dev) and R source from apt-get
source 2.1.1 I get the following error:
$ R CMD build vjREventLoop
* checking for file
2005 Jul 20
1
(PR#8017) build of REventLoop package crashes with 2.1 due
In what way is this a bug in R? It looks like a bug in the package, and
as Defn.h is not part of R's API any packge using it is `at risk' (and
cannot be installed in a binary-only installation, or even an installed
version of R).
In particular, Defn,.h depends on config.h, and it seems you installed a
binary version of R and used separate sources. I would suggest building
R from
2010 Jan 28
1
Problem with R math library.
Hello.
I've been working on my OCaml-R binding, and I quite pleased to see that
it is functional, though far from being perfect or polished. You can
find the gitweb webpage and the interface documentation at
http://yziquel.homelinux.org/gitweb/?p=ocaml-r.git;a=tree
http://yziquel.homelinux.org/topos/api/ocaml-r/index.html
I'm having unexpected trouble with the math library, though.
2009 Nov 28
2
[Fwd: opened symbols in libR.so available.]
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 mkPROMISE symbol is available:
> yziquel at seldon:/usr/lib/R/lib$ nm -D libR.so | grep mkPROMISE
> 000000000011f6f0 T Rf_mkPROMISE
> yziquel at
2009 Sep 03
1
Originate calls with AMI.
Hello.
I've been trying to use the AMI to originate phone calls.
I'm trying to call the SIP phone 'zoiper' with the SIP phone 'yziquel'.
So, the AMI interaction is:
> Action: originate
> Channel: SIP/zoiper
> Exten: yziquel
> Priority: 1
> Timeout: 30
> Context: internal
>
> Response: Error
> Message: Originate failed
>
> Event:
2009 Nov 14
1
Silently loading an R package.
Hello.
I've been working an a binding between OCaml and R (i.e. calling R from
OCaml, mostly). See below for a taste of it.
I'm currently wondering how to load a given R package silently. I tried
require(xts, quietly = TRUE)
but I still get some ugly output. Is it possible to squeeze off this
output on stdout?
All the best,
Guillaume Yziquel.
> yziquel at seldon:~$
2009 Oct 10
1
Help with OCaml bindings for R interpreter.
Hello.
I've made out a Debian package out of Maxence Guesdon's OCaml/R bindings:
http://yziquel.homelinux.org/topos/debian-ocamlr.html
http://yziquel.homelinux.org/debian/pool/main/o/ocaml-r/
The upstream software itself is on the following page:
http://home.gna.org/ocaml-r/
This binding is dynamically linked to the /usr/lib/R/lib/libR.so and to
the /usr/lib/libRmath.so libraries.
2009 Oct 15
2
2 IPs for an Asterisk server.
Hello.
I've been setting up an Asterisk server, and I am now supposed to move
it to a different network than the one it was set on.
I'd like to give the server 2 IP address:
-1- The first IP address is the IP it will have on the LAN, meaning that
softphones will register to the Asterisk server using this 1st IP.
-2- The second IP is the one that it will use to connect to the remote
2009 Sep 07
1
Usage of OCaml/R binding.
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 bindings:
http://pauillac.inria.fr/~guesdon/ocaml-r.en.html
The purpose of this software is to access R from OCaml programs.
However, my issue is that after having pulled things to a Debian
2009 Sep 07
1
Usage of OCaml/R binding.
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 bindings:
http://pauillac.inria.fr/~guesdon/ocaml-r.en.html
The purpose of this software is to access R from OCaml programs.
However, my issue is that after having pulled things to a Debian
2009 Dec 12
1
code for [[.data.frame
Hello.
I'm currently trying to wrap up data frames into OCaml via OCaml-R, and
I'm having trouble with data frame subsetting:
> # x#column 1;;
> Erreur dans (function(x, i, exact) if (is.matrix(i)) as.matrix(x)[[i]] else .subset2(x, :
> l'?l?ment 1 est vide ;
> la partie de la liste d'arguments de 'is.matrix' en cours d'?valuation ?tait :
> (i)
2009 Oct 21
1
ChannelStateDesc: Ring ?
Hello.
I've experience a rather surprising behaviour of the AMI 1.1
> Event: Newstate^M
> Privilege: call,all^M
> Channel: SIP/XXXXXX-089c63b8^M
> ChannelState: 4^M
> ChannelStateDesc: Ring^M
> CallerIDNum: XXXXXXXX^M
> CallerIDName: YYYYYYYYY^M
> Uniqueid: 1256089773.59^M
Usually ChannelStateDesc gives me 'Ringing' but sometimes it only gives
me
2010 Feb 15
1
What symbols are loaded when require()ing?
Hello.
I would need to know of a programmatic way to get a list of all the new
symbols you get when require(9)ing a package/library. I'd like to know
how to do that from within R, or with the C API. Pointers to relevant
documentation are also welcome.
All the best,
--
Guillaume Yziquel
http://yziquel.homelinux.org/
2009 Nov 30
1
:Re: PROTECT and OCaml GC.
>>> 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 think you approach is
>>> very viable
2009 Aug 03
1
Outbound calls drop after 15 to 30 seconds.
Hello.
I've set up and configured an Asterisk server to make SIP phone calls to
external classic phones.
However, it happens that after 15 or 30 seconds, the phone call drops.
The SIP session still seems valid, but no sound comes through any more.
How would you go through to troubleshoot this issue?
All the best,
Guillaume Yziquel.
2010 Jan 30
2
Stop packages and datasets to be loaded on startup.
Hi.
I would like to know how to start an embedded R session, and avoid
datasets and the standard library packages to be loaded on startup.
I've been looking at littler's code (so this is partly a question to
Dirk Eddelbuettel...):
> /* We don't require() default packages upon startup; rather, we
> * set up delayedAssign's instead. see autoloads().
>
2009 Aug 24
1
Bottlenecks with my asterisk setup.
Hello.
I've been seting up a small VoIP setup, with roughly 5 persons, doing
essentially some Meetme conferences.
People have been experiencing some quality problems with the sound.
Essentially delay, and some tolerable echo.
I'd appreciate advice on how to troubleshoot this issue. What could be
the most common reasons behind this? Please feel free to ask for more
relevant details.