similar to: (PR#11054) "Writing R Extensions": bad example with CAR

But it is not taken 'verbatim from src/main/print.c' (at least not in that version of R), and the code is not run with USE_RINTERNALS defined when write-barrier checking is enabled. The example has been updated to match the current code in 2.7.0 alpha. On Sun, 30 Mar 2008, sanders at fs.tum.de wrote: > Full_Name: Simon Anders > Version: 2.6.2 > OS: Ubuntu Linux >

Hi, I would like to report a small bug in one of the code examples given in the 'Writing R extensions' manual. Section 5.9.2 ("Calling .External") defines the function "showArgs" in order to demonstrate how to access in C the pair-listed arguments passed by .External. The function aims at printing echoing all passed arguments to the screen but only prints every

Full_Name: Simon Anders Version: 2.6.2 OS: Ubuntu Linux Submission from: (NULL) (86.22.75.91) This is a rather minor "documentation bug", certainly not at all urgent. The manual "Writing R extensions" explains in section 5.10 ("Evaluating R expressions from C") how to use the eval function. Without going into much details, an example is given how to build up a

Hi, I recently ran into a problem with 'merge' that stems from the way how missing values in the key column (i.e., the column specified in the "by" argument) are handled. I wonder whether the current behavior is fully consistent. Please have a look at this example: > x <- data.frame( key = c(1:3,3,NA,NA), val = 10+1:6 ) > y <- data.frame( key = c(NA,2:5,3,NA),

Hi While installing RPy2, I had curious problems which, if I traced them back correctly, have their root in the way that libR.so find the R installation directory. I wonder if this might be a subtle bug that only causes problems when one has several versions of R on one system but then can be very annoying and cause very strange behaviour. It seems to me that libR.so asks the Unix shell to

Hi, is there an elegant way to use 'substitute' with '...' arguments? My first try was this: > f1 <- function(...) substitute(...) > f1( 2+7, "foo", 3+5 ) 2 + 7 As you can see, substitute acts only on the first argument. So I tried > f2 <- function(...) substitute(list(...)) > f2( 2+7, "foo", 3+5 ) list(2 + 7, "foo", 3 + 5)

Hi all, it seems that from R 4.0.1 EXTPTR_PTR can be either a macro or a function, depending on whether USE_RINTERNALS is requested. Jeroen helped me find that this was in 78592: https://github.com/wch/r-source/commit/c634fec5214e73747b44d7c0e6f047fefe44667d This is a problem, because binary packages that are built on R 4.0.1 or R 4.0.2 will potentially not load on R 4.0.0, if they use the

I have tried to compile this from source. I don't know what Endianess is, but it is probably not debian power pc. Am I would of luck with this package? Stephen Sefick * Installing *source* package ?ifultools? ... ** libs gcc -std=gnu99 -I/usr/local/lib/R/include -I"../inst/include/" -D"MUTIL_STATIC" -D"DEF_TF" -D"INTERRUPT_ENABLE"

Hi everyone It looks like repeated runs of fastICA produce quite significantly different mixing matrices (not only in terms of sign and row order). I'm not a specialist, so would appreciate any advice on whether this should really be the case: > res3 = > fastICA(af[,2:20],4,alg.typ="parallel",fun="logcosh",alpha=1,method="C",row.norm=TRUE) colstandard >

Dear John Fox and everyone, I have been using the effects library with glms and have found it very useful. Now I'm trying it with lms and I'm not sure if the results of the allEffects() are as expected. I've got a model that looks like this: mymodel = lm(formula = A ~ B + C + D + B:D + C:D) Residuals: Min 1Q Median 3Q Max -3.80156 -0.73486 -0.09792

Hi, Again, sorry for the length of this post. Once I get my new office I will get a website set up on my work machine and will simply post a link to the log since I doubt many people are truly interested in these logs. To further analyze what is happening, I added my own routine in main.c called DEBUG_SET_NAMED and then redefined the SET_NAMED macro to use it and then rebuilt R. I

Hello, I'm trying to link a large in-house C++ library into R. So far, I've managed to to most of what I want, but I have one remaining question and a suggestion. The suggestion first: I've found it useful to put #ifdef __cplusplus extern "C" { #endif and #ifdef __cplusplus } #endif around the function prototypes in Rinternals.h (in

Hi, Somehow function-like macros from Rinternals.h are not defined when I include the file. foo.c ################## #include <R.h> #include <Rinternals.h> #ifndef NILSXP #error("NILSXP") #endif #ifndef INTEGER #error("INTEGER") #endif ################### When compiled: vor/src% gcc -I/usr/local/lib/R/include -g -O2 -c foo.c -o foo.o foo.c:11:2: #error

Hello, For the BUILTINSXP and SPECIALSXP types, the R Internals page documents "An integer giving the offset into the table of primitives/.Internals. " What macro gives me the value of this integer? I guess something like this would work had R_USEINTERNALS been defined v->u.primsxp.offset (where v is a SEXP of either of the above types). What is the portable version? Thank you

R developers, Last week I asked several questions which I think I can now answer myself in large part. > > Q 1) Is aov supposed to avoid qr decomposition and matrix inversion? > In S it is claimed to be faster than lm() for large datasets. Is > that due to avoidance of qr()? > (My main goal is to get the Error strata working.) My use of matrix

Hi, I was trying to do a source to source transformation in llvm from c++11 more basic c++ (to transform away auto etc.) using llvm3.1. I generate llvm bitcode using "clang++ -emit-llvm ...", but executing llc -march=cpp throws /home/broes/software/llvm/lib/Target/CppBackend/CPPBackend.cpp:493: void {anonymous}::CppWriter::printAttributes(const llvm::AttrListPtr&, const

Hi Jiefei and Kylie, Great to see people engaging with the ALTREP framework and identifying places we may need more tooling. Comments inline. On Thu, Jul 18, 2019 at 12:22 PM King Jiefei <szwjf08 at gmail.com> wrote: > > If that is the case and you are 100% sure the reference number should be 1 > for your variable *y*, my solution is to call *SET_NAMED *in C++ to reset > the

Hi, everyone. I'm trying to debug an R-module, written in C, and I'm using gdb for this. How can I print "standard" R objects from within C code? BTW, I'm familiar with the advice to use R_PV given in Writing R Extensions, but it's not working for me. E.g., I get (gdb) p R_PV(x) $1 = void and yet (gdb) p *x $2 = {sxpinfo = {type = 16, obj = 0, named = 0, gp = 0,

>> > I was trying to do a source to source transformation in llvm from c++11 >> > more >> > basic c++ (to transform away auto etc.) using llvm3.1. >> > I generate llvm bitcode using "clang++ -emit-llvm ...", but executing >> > llc >> > -march=cpp throws >> > /home/broes/software/llvm/lib/Target/CppBackend/CPPBackend.cpp:493:

Hello Everyone, We have a replicated Gluster volume with three nodes, and we face a strange issue whenever we need to restart one of the nodes in this cluster. As per my understanding, if we shut down one node, the Gluster mount should smoothly connect to another remaining Gluster server and shouldn't create any issues. In our setup, when we stop Gluster on any of the nodes, we mostly get