search for: sexprecs

Hello, I've noticed that with g++ 4.3 I get the following "warning: deprecated conversion from string constant to ?char*?" when I call e.g., Rprintf("Hello world"); or when I try to define a const char e.g., char lower = 'L'; I am wrapping the c++ code in extern "C" {}. This seems to be something new with g++ 4.3, because the same code compiled

Hi folks, I apologise if this is in the documentation somewhere, but I can't seem to find it. I also did a search of CRAN without any success. I'm using R-1.8.1 (pre-compiled) on Windows 2000 with Rtools and mingw 2.0.0 (which includes gcc/g++ 3.2). I'm trying to link some C++ code from another application to R using the .Call interface and am experiencing some problems. I was

I found this by accident yesterday. The program that crashes is the first two lines of the example from the help page for nlmer. That example hasn't changed in a long time, so I assumed that it is an R-devel issue. It could also be a long latent nlmer bug. The second run with valgrind is puzzling. Terry T. > library(lmer) > sessionInfo() R Under development (unstable)

Thanks, posted to https://github.com/lme4/lme4/issues/412 for further discussion ... On Wed, Feb 22, 2017 at 10:03 AM, Therneau, Terry M., Ph.D. <therneau at mayo.edu> wrote: > I found this by accident yesterday. The program that crashes is the first > two lines of the example from the help page for nlmer. That example hasn't > changed in a long time, so I assumed that it is

There seems to be a latent flaw in the definition of struct SEXPREC in Rinternals.h, which likely doesn't cause problems now, but could if the relative sizes of data types changes. The SEXPREC structure contains a union that includes a primsxp, symsxp, etc, but not a vecsxp. However, in allocVector in memory.c, zero-length vectors are allocated using allocSExpNonCons, which appears to

Full_Name: The Manager Version: 2.0.1 OS: Solaris 9 Submission from: (NULL) (129.67.80.243) > install.packages("gbm") trying URL `http://cran.uk.r-project.org/src/contrib/PACKAGES' Content type `text/plain; charset=ISO-8859-1' length 52975 bytes opened URL ================================================== downloaded 51Kb trying URL

Hi, With the sid package jags (2.0.0-1) and r-base-core (2.11.0-1), I cannot install package rjags anymore (this used to work at some point; can't recall exactly at what R/JAGS versions): ---<--------------------cut here---------------start------------------->--- R> install.packages("rjags", configure.args="--with-jags-modules=/usr/lib/JAGS/modules-2.0.0")

Dear R-Developers, I just started learning how to use Rcpp. Earlier while using it, I encountered an error as shown below: file74d8254b96d4.cpp: In function ‘Rcpp::NumericVector foo(Rcpp::NumericVector, Rcpp::NumericVector, Rcpp::NumericVector, Rcpp::Function, Rcpp::Function)’: file74d8254b96d4.cpp:10: error: invalid operands of types ‘SEXPREC*’ and ‘R_len_t’ to binary ‘operator/’ make: ***

I have a use case where I would like to create an SEXP around an existing buffer that is managed by R, thus avoiding a copy operation. If I have something like: void *p = (void*) RAW(PROTECT(Rf_allocVector(RAWSXP, n))); ... additional maniupulation ... SEXP x = somefunc(SXPTYPE, n, p); // ???? Is there a "placement" constructor available? (I have arranged for the corresponding

...ed to construct an SEXP (SEXPREC) and point it at the buffer, set the vector length and data type. I was checking to see if there is an API for that (and that wont interfere with Rcpp declarations as it pulls in parts of Rinternals.h, but as far as I can tell, not the parts that I need to work with SEXPRECs at a low-level). THK > H. > > >> Thanks for any pointers. >> >> THK >> >> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.keit >> tlab.org_&d=DwICAg&c=eRAMFD45gAfqt84VtBcfhQ&r=BK7q3XeAvimeWd >> GbWY_wJYbW0WYiZvSXAJJKaaPhzWA&a...

Dear list, I am writing C code to interface with R, and I would like to know the level of mutability for the type of a SEXP. I see that there is a macro/function TYPEOF(), and that it can be used as an l-value, as well as a macro/function SET_TYPEOF(). My question is "should the type be considered immutable, or it can it change after the SEXP has been created and used for a while ?".

Hi everybody, I''m using R on a 64-bit Ubuntu 9.04 (Jaunty). I prefer to install R packages from source, even if they are available in Synaptic. The problem is that I can''t install/compile kernlab. Everything works fine until it gets to the lazy loading part: ** preparing package for lazy loading Creating a new generic function for "terms" in "kernlab"

Hi All, I am new to this area and use Rcpp to call C++ from R and try to build the package under Windows 7. I use Rtools and R 2.10.1 32bit. Everything works fine with me, except using R functions like "rnorm" or "runif" in the C++ code. When I use "R CMD check" the package, it always return error ** libs making DLL ... g++

...an SEXP (SEXPREC) and point it at the buffer, set the vector length and > data type. I was checking to see if there is an API for that (and that wont > interfere with Rcpp declarations as it pulls in parts of Rinternals.h, but > as far as I can tell, not the parts that I need to work with SEXPRECs at a > low-level). > Atomic vector SEXPRECs are (and must be) contiguous in memory (header plus payload), so I don't think what you're wanting is possible without the ALTREP framework being in place (decoupling header and payload is a major motivating desire for us). I may misunderst...

Hi, I'm quite knew in R, so I might not have the R specific jargon. But here is my problem, I'm trying to access and use variabels given by a function environment, more specifically the rho in do_optim in src/main/optim.c According to the documentation http://cran.r-project.org/doc/manuals/R-ints.html#The-_0027data_0027 the envsxp is defined as a tagged pairlist. "ENVSXP: Pointers

I am running into a wall getting my system to work with rcpp and inline. Following Dirk's advice on stackoverflow, I hope someone is able to help me. My steps were to install MinGW 32 bit first, then installing Rtools, I disabled MinGW's entry in the PATH. I am trying to get the following code to work: library(Rcpp) library(inline) body <- ' NumericVector xx(x); return wrap(

Hi I planned to learn R and their machine learning algorithms such as xgboost. I just installed R 3.3 in our CentOS linux system. Linus system: centos-release-6-9.el6.12.3.x86_64 I used the command: yum install R. I successfully install "rJava" and "mlr" packages. Then I used the following command: install.packages("xgboost") Unfortunately, I cannot install xgboost

>> I am trying to compile rseries from Whit Armstrong and a colleague of mine found a problem with using GCC4 I get the following error when compiling rseries g++-sjlj -Ic:/R/include -O2 -Wall -c Rutils.cpp -o Rutils.o Rutils.cpp: In function 'double* getColPointer(SEXPREC*, int)': Rutils.cpp:406: warning: deprecated conversion from string constant to 'char*'

I have a littler script which is crashing with a segmentation fault. I tried to find out why by running it through valgrind, which produced the output below. I am not sure how to proceed from here (other than binary search with print statements). Any help would be appreciated. Thanks, Eric ==12589== Invalid read of size 1 ==12589== at 0x4C2F1B1: strcmp (in

Hi Tim, On 03/29/2017 08:24 AM, Tim Keitt wrote: > I have a use case where I would like to create an SEXP around an existing > buffer that is managed by R, thus avoiding a copy operation. What to you mean exactly by "an existing buffer managed by R"? > If I have > something like: > > void *p = (void*) RAW(PROTECT(Rf_allocVector(RAWSXP, n))); > ... additional