similar to: Classification Trees and basic Random Forest pkg using t ree structures in C

Displaying 20 results from an estimated 3000 matches similar to: "Classification Trees and basic Random Forest pkg using t ree structures in C"

2005 Nov 04
2
Classification Trees and basic Random Forest pkg using tree structures in C
Hello R-devel: I have written a package, called "woods", that does classification trees (R function CT), and currently, only the most basic functionality of Random Forest, e.g. bagged trees with choices about sample size, with/without replacement, size of (random) subset of covariates drawn when nodes are split. My reason for writing this is twofold. First, I wanted to base this
2005 Oct 24
6
Rgnome depends on obsolete components libglade/libxml (PR#8247)
Full_Name: Hin-Tak Leung Version: R 2.2.0 OS: x86 linux Submission from: (NULL) (131.111.126.242) Rgnome depends libglade 0.x and libxml 1.x . They are no longer shipped with Redhat EL4. (I know they are still in fedora core 4). Just a wish-list.
2005 Nov 17
4
problem with \eqn (PR#8322)
Full_Name: Ross Boylan Version: 2.2.0 OS: Linux Submission from: (NULL) (65.175.48.58) \eqn{{\bf\beta}_j}{b(j)} in my .Rd file produces this error -------------------------------------------- ! Missing $ inserted. <inserted text> $ l.7 \eqn{{\bf\beta}_j}{\bf\beta}_ jnormal-bracket5bracket-normal{b(j)} -- ! Missing $ inserted. <inserted
2007 Jan 10
2
wine and build difference between R.2.4.0 and R 2.4.1 windows binaries?
Does anybody (most probably the core team) know if there is any difference in how the official 2.4.0 and 2.4.1 binaries are built? Problem is, 2.4.0 loads with the wine (I tried a few recent versions, and also used 2.3.x under wine from time to time), but 2.4.1 won't. Thanks. Hin-Tak Leung
2017 Feb 20
1
another fix for R crashes under enable-strict-barrier, lto, trunk@72156
On 2nd thought, I think a better fix to the segfault is something like this: --- a/src/main/memory.c +++ b/src/main/memory.c @@ -3444,6 +3444,8 @@ R_xlen_t (XTRUELENGTH)(SEXP x) { return XTRUELENGTH(CHK2(x)); } int (IS_LONG_VEC)(SEXP x) { return IS_LONG_VEC(CHK2(x)); } const char *(R_CHAR)(SEXP x) { + if(!x) + error("de-referncing null. Check the validity of your data.");
2006 Jan 27
1
rbind/cbind unimplemented for raw (RAWSXP) types. (PR#8529)
Full_Name: Hin-Tak Leung Version: R 2.2.1 OS: x86_64-redhat-linux-gnu Submission from: (NULL) (131.111.186.92) rbind/cbind is unimplemented for raw (RAWSXP) types. I have a working patch implementing the functionality, to follow. --please do not edit the information below-- Version: platform = x86_64-redhat-linux-gnu arch = x86_64 os = linux-gnu system = x86_64, linux-gnu status = major
2005 Oct 26
2
Microsoft help files
I wonder if the software here: http://morte.jedrea.com/~jedwin/projects/chmlib/ or at any of the links on that page might allow elimination of the need for separately downloading the Microsoft Help compiler -- which is just one more task that one must perform to get up and running to build your own R packages on Windows.
2015 May 16
2
That 'make check-all' problem with the survival package
------------------------------ On Sat, May 16, 2015 8:04 AM BST Uwe Ligges wrote: >Not sure why this goes to R-devel. You just could have asked the >maintainer. Terry Therneau is aware of it and promised he will fix it. > The quickest fix is to add cmprsk to the recommended list , and that's is an R-devel issue. >On 16.05.2015 07:22, Hin-Tak Leung wrote: >> 'make
2006 Mar 08
2
Wishlist - Give R a name that shows up in search engines ...
From: Dirk Eddelbuettel > > On 7 March 2006 at 10:55, Hin-Tak Leung wrote: > | I have given up on "R" with any topic on Google quite some time ago > | (because bits from fragmented postscript/pdf files show up, for > | example) - but using "r-devel" with topic normally gives me enough. > | YMMV. > > Nobody seems to have mentioned the RSiteSearch()
2011 Oct 22
3
Sweave, cairo_pdf, CJK, ghostscript
I have had some fun in the last few days trying to put together an annotated map of China with R and some public GIS data: http://sourceforge.net/projects/outmodedbonsai/files/snpMatrix%20next/1.17.7.11/China_Choropleth_Maps.pdf/download It is done, and rather nice... there are a few issues: - the default pdf() device cannot do CJK with embedded fonts - and cairo_pdf() is not hooked up to
2007 Mar 29
1
zlib+shlib issue with the official EL4 R binary
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
2015 Jan 19
3
[PATCH] Makefile: add support for git svn clones
Hi, On Mon, Jan 19, 2015 at 03:44:45PM -0500, Duncan Murdoch wrote: > >>>>> git has an interface for cloning SVN repositories into git > >>>>> which some users might decide to use. For those users' > >>>>> surprise, the repository will always fail to build on > >>>>> svnonly target and it will exit early. >
2005 Oct 13
2
R, Wine, and multi-threadedness.
Hi, I managed to install Win32 R 2.2.0 with the CRAN Innosetup installer under Wine on x86 linux a few days ago. However, on trying to run it, MSVCP60.DLL is missing. So here is a sort of a bug report, and a couple of questions: (1) I think the R binary in the CRAN Innosetup installer was built with mingw. The R-windows FAQ did mention that this DLL is required *for Chinese/Japanese/Korean*
2011 Feb 03
1
bug in codetools/R CMD check?
Hi Mr Tierney, I have noticed an error message from R 1.12.x's CMD check for a while (apparently prof Ripley completely rewrote CMD check in R 1.12+) e.g.: http://bioconductor.org/checkResults/2.7/bioc-LATEST/snpMatrix/lamb2-checksrc.html ---------------- * checking R code for possible problems ... NOTE Warning: non-unique value when setting 'row.names': ?new? Error in
2011 Oct 15
2
gctorture() and gzfile() doesn't get along.
Found the simpliest way of seeing I bug I encountered doing "R CMD check --use-gct": Just launch R (with --vanilla), and do this: > ?gctorture # this work > gctorture() > ?gctorture Error in gzfile(file, "rb") : can only weakly reference/finalize reference objects # this does not It seems that when gctorture() is on gzfile() doesn't work.
2006 Mar 07
2
double pointer matrix
Hello, I'm having some difficulty to understand how I could take the proper result from the following listing: -- cut --- #include <stdlib.h> #include <R.h> #include <Rmath.h> void retMat ( double **y, int *n, int *m, double *a, double *b) { int i, j; y = malloc( (*n) * sizeof( double ) ); for (i=0; i<*n; i++) { y[i] = malloc (
2007 Jan 18
2
subsetting matrix by subscript=0,x silently skips.
(e-mailing to R-bugs is intentional - the web itnerface seems to be down) > a<- cbind(c(1,2), c(3,4)) > a [,1] [,2] [1,] 1 3 [2,] 2 4 > a[cbind(c(2,2), c(2,1))] [1] 4 2 > a[cbind(c(2,3), c(2,1))] Error: subscript out of bounds > a[cbind(c(2,-1), c(2,1))] Error: negative values are not allowed in a matrix subscript > a[cbind(c(2,0), c(2,1))] [1] 4 Am
2006 Jul 31
1
building windows packages under wine/linux and cross-compiling.
Had some fun today, and thought it might be a good idea to share and possibly for inclusion to R/src/gnuwin32/README.packages . Wine/linux : while R, ActiveState Perl, mingw all works alright under wine, the blocking issue is Rtool's cygwin dependency. forking (as much of make and sh is forking sub-processes) on posix-on-win32-on-posix currently doesn't work.
2014 Jan 06
4
2 bugs in R's grDevices, and fixes.
Just before the holiday, I asked the freetype developers what is the context of these two comments about freetype in the code of R's grDevices: ======= R/src/library/grDevices/src/cairo/cairoFns.c around line 720 ===== /* some FreeType versions have broken index support, fall back to index 0 */ if (!FT_New_Face(ft_library, (const char *) file, index, &face) || (index
2014 Jan 06
4
2 bugs in R's grDevices, and fixes.
Just before the holiday, I asked the freetype developers what is the context of these two comments about freetype in the code of R's grDevices: ======= R/src/library/grDevices/src/cairo/cairoFns.c around line 720 ===== /* some FreeType versions have broken index support, fall back to index 0 */ if (!FT_New_Face(ft_library, (const char *) file, index, &face) || (index