similar to: R 2.6.0 S4 data breakage, R _data_class(), class<-, etc.

Hi all, If dimensions are added to a list, it will become a matrix-like hybrid that calls itself a matrix, but returns lists for subset operations. This was brought to my attention by a user that encountered such an object and was quite confused by its behavior. Although I have not found the code that created the object yet, I believe that code is simply incorrect. Nevertheless, I wonder if

Hi, In src/attrib.c, the comment for the function R_data_class is: ``` /* the S4-style class: for dispatch required to be a single string; for the new class() function; if(!singleString) , keeps S3-style multiple classes. Called from the methods package, so exposed. */ SEXP R_data_class(SEXP obj, Rboolean singleString) ``` I am obviously writing this because I'd wish to see it

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

I get the error undefined symbol: Rf_rownamesgets when I try to load my package, which include C++ code that calls that function. This is particularly strange since the code also calls Rf_classgets, and it loaded OK with just that. Can anyone tell me what's going on? For the record, I worked around this with the general purpose attribute setting commands and R_RowNamesSymbol. I

Hi Mehmet, On 11/29/2017 11:22 AM, Suzen, Mehmet wrote: > Hi Herve, > > I think you are confusing subclasses and classes. There is no > contradiction. `is` documentation > is very clear: > > `With one argument, returns all the super-classes of this object's class.` Yes that's indeed very clear. So if "list" is a super-class of "data.frame" (as

Yes, data.frame is not an S4 class but is(data.frame()) finds its super-classes anyway and without the need to wrap it in asS4(). And "list' is one of the super-classes. Then is(data.frame(), "list") contradicts this. I'm not asking for a workaround. I already have one with 'class2 %in% is(object)' as reported in my original post. 'is(asS4(object), class2)'

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

Hi, I have got a curious issue with an R package which uses zlib, against the official binary here: http://cran.r-project.org/bin/linux/redhat/el4/i386/R-2.4.1-1.rh4AS.i386.rpm on a Redhat EL4 i686 system. The problem is that at the end of reading a gzip'ed file within my C code, gzgetc() returns -1 (no more to read or error) but gzeof() doesn't return true. Now one can probably jump to

Hi Herve, Interesting observation with `setClass` but it is for S4. It looks like `data.frame()` is not an S4 class. > isS4(data.frame()) [1] FALSE And in your case this might help: > is(asS4(data.frame()), "list") [1] TRUE Looks like `is` is designed for S4 classes, I am not entirely sure. Best, -Mehmet On 29 November 2017 at 20:46, Herv? Pag?s <hpages at

Hello everyone, I've just attempted to build R-1.4 on Compaq Tru64 (I'll enclose the text from bug.report() from R-1.3.1 at the end.) The relevant part of the log is below. Any ideas? gcc -shared -o methods.so do_substitute_direct.o methods_list_dispatch.o method_meta_data.o slot.o -L/usr/local/lib /usr/ucb/ld: Warning: Unresolved: TYPEOF Rf_error Rf_protect Rf_substitute

In a C++ extension to R (v 1.8.1), I've been experimenting with a generic "push back" function to tack one value at a time onto the end of an R vector created within the extension. After calling this function a certain number of times Rgui.exe (I'm writing in Windows using Visual Studio .NET 2003) will fail with an Access Violation, which doesn't happen when I pre-allocate

Hi Morgan, So if the goal is output identical to calling factor, one thing youc an do is construct and evaluate a call to the R-level factor function. That would work and be guaranteed to meet your requirement. The factor function is implemented with R code, without even any direct calls down to C code, so there isn't any C level functionality already there that you could try to hit

Hi, Using the R C PAI, is there a way to convert to convert STRSXP or INTSXP to factor. The idea would be to do in C something similar to the "factor" function (example below): > letters[1:5] # [1] "a" "b" "c" "d" "e" > factor(letters[1:5]) # [1] a b c d e # Levels: a b c d e There is the function setAttrib the levels of a SXP

Thought I'd try and start a discussion. Feel free to jump in. I guess R needs to strike the right balance between opening up the internals to package writers and not allowing them to do bad things. My first attempt at cracking this nut is to just memcpy() the Rconnection and not allow access to the private stuff: /* Alternative to allowing C code access to connection API. */ Rconnection

Hello, If repeated calls are made to save() using the same pre-opened gzfile connection to a file, and then the connection is closed, the objects saved by the second and subsequent calls are not correctly restored by repeated calls to load() with a new gzfile connection to the same file. What follows are a session exposing the bugs, analysis (see ANALYSIS), patches (see PATCHES), and a session

man for `qr` says that the function uses LINPACK's DQRDC, while it in fact uses DQRDC2. ``` The QR decomposition of the matrix as computed by LINPACK or LAPACK. The components in the returned value correspond directly to the values returned by DQRDC/DGEQP3/ZGEQP3 ```

Hi folks. I posted this question a few days ago, but maybe it got lost because of the code I included with it. I'm having a problem using the SET_LENGTH() macro in an R extension I'm writing in C++. In a function within the extension I use SET_LENGTH() to resize R vectors so as to allow the concatenation of single values onto the vectors -- it's a "push back" function to

Hi R-help folks, I have been doing some single SNP association work using snpMatrix. This works well, but produces a lot of false positives, because of population structure in my data. I would like to correct the p-values (which snpMatrix gives me) for population structure, possibly using principle component analysis (PCA). My data is complicated, so here's a simple example of what

The windows replacement is R-library-grDevices-libs-winCairo_20150122.zip in http://sourceforge.net/projects/outmodedbonsai/files/R/ The cairo replacements are just two bundles, windows or OS X - containing replacements for R 2.15.3, 3.0.3 and 3.1.2. You just extract the relevant one for your R version. The windows builds of R packages snpStats x.x.x.8 and snpMatrix 1.19.0.20 were done with

R.framework-Versions-Resources-library-grDevices-libs-cairo_20150120.tgz in http://sourceforge.net/projects/outmodedbonsai/files/R/ are dropped in replacement to the cairo.so's in the official R binaries (2.15.3, 3.0.3, 3.1.2). updated to cairo-1.12.18 and freetype-2.5.4. The official R binaries' were built with early freetype 2.4.x and cairo 1.11(?) and had a number of issues with some