Displaying 20 results from an estimated 200 matches similar to: "Truncating vectors by reference in C-backend"
2005 Sep 04
1
A memory management question
Can someone explain the use of SETLENGTH() and SETTRUELENGTH()?
I would like to allocate a vector and reserve some space at the end,
so that it appears shorter than the allocated size. So that I can
more efficiently append to the vector, without requiring a new copy
every time. So I'd like to use SETLENGTH() with a shorter apparent
length, and bump this up as needed until I've used the
2011 Jan 17
1
isoreg memory leak?
I believe there is a memory leak in isoreg in the current version of R,
as I believe the following shows
> gc()
used (Mb) gc trigger (Mb) max used (Mb)
Ncells 120405 3.3 350000 9.4 350000 9.4
Vcells 78639 0.6 786432 6.0 392463 3.0
> for(k in 1:100) {
+
+ y <- runif(10000)
+ isoreg(x,y)
+ }
> rm(x)
> rm(y)
> gc()
used (Mb) gc
2018 May 04
2
Debugging "SETLENGTH() cannot be applied to an ALTVEC object."?
Hi all,
I wish to push a new version of a package (heatmaply).
I sent it to winbuild with no issues but after submitting it to CRAN I got
an update that it breaks on Debian, see:
package heatmaply_0.15.0.tar.gz does not pass the incoming checks
automatically, please see the following pre-tests:
Windows: <https://win-builder.r-project.org/incoming_pretest/
2007 Apr 11
0
Problem with speex
Hello!
I am downloaded last version of speex library and did compile DLL.
But I am have not good sound : Please see my code (Delphi) and say me
please WHat I am do not right.
Or please send me correct compiled DLL and example of correct using
SPEEX_MODEID_WB and SPEEX_MODEID_UWB , denoise, and other effects.
How I can set MONO mode in decode?
My Code:
smpRt:=32000;
n:=10;
encbits:
2002 Nov 13
1
Package documentation and rd.sty
Hi all,
I've got a basic question regarding package documentation and rd.sty. I
wrote my first own package, and now I would like to place the documentation
into the appendix of another LaTex document. Seemingly I cannot simply
\usepackage{Rd}, as this will modify the page-settings of my document. Is
there a minimum style file which will just define the environments and
commands needed for
2010 May 11
1
Table and Sweave
Hi,
in Latex I get the table using:
\begin{table}[H]
\centering
\renewcommand{\arraystretch}{1.3}
\setlength{\tabcolsep}{18pt}
\begin{tabular}{cc} \hline
Idade & Frequ?ncia \\ \hline
$18 \vdash 26$ & 11 \\
$26 \vdash 34$ & 8 \\
$34 \vdash 42$ & 26 \\
$42 \vdash 50$ & 20 \\
$50 \vdash 58$ & 23 \\
$58 \vdash 66$ & 30 \\
$66
2002 Jul 12
0
Problem with checksums
I'm trying to write a program that reads an ogg stream and check all the
CRC values along the way. But I have big trouble with computing the
checksum, or at least I never got checksums that match the one that is in
the ogg file.
I do set the CRC field in the header to 0 before calculating it. I start
with 0 and have no xor at the end. I feed page header with all lacing
values and the page
2004 Oct 21
1
Arrow heads at the end of axes
I would like to have arrow heads at the end of my axes, since I am
plotting variable where the absolute amount is irrelevant, there is not
supposed to be numbers on the axes.
An imperfect example:
plot(rnorm(10),bty='l',xaxt='n',yaxt='n',ylab='',xlab='',type='l')
abline(h=0)
Like this but without, the xaxis and with arrrowheads
More like this in
2005 Oct 24
2
R_MakeExternalPtr
Hi,
I'm using R_MakeExternalPtr() to store handles to (COM) objects in a SEXP.
The code basically is
sexp = R_MakeExternalPtr(handle,R_NilValue,R_NilValue);
R_RegisterCFinalizerEx(...);
After creating the sexp, LENGTH(sexp) returns some quite large integer
value. It seems like an "unitialized" value.
Can I safely assume, that an SEXP of type EXTPTRSXP can only contain a
single
2011 Apr 09
1
Trouble with Sweave and Beamer
Dear All,
I am running Debian testing on my box and I installed latex and R from
the standard repositories.
I am trying my hands at sweave, but somehow I am experiencing problems
(I am trying to use beamer and Sweave). Please see the snippet at the
end of the email and saved as report.Rnw.
When I run the command
$ R CMD Sweave report.Rnw
Writing to file report.tex
Processing code chunks ...
2009 Jun 14
1
Centering graphics by default in Sweave
Is there an elegant way to get Sweave to center graphics by default?
I'd like to use \centerline{\includegraphics{}} etc. to save some
vertical space that \begin{center} ... \end{center} uses, and I'd like
to avoid centering with each <<fig=T>>=
Thanks
Frank
--
Frank E Harrell Jr Professor and Chair School of Medicine
Department of
2007 Jul 24
1
Custom kinit to find device by "label"
I need to reliably boot a server from a USB device. Since USB
device ordering can be unpredictable, I wrote a simple
early-userspace "init" program to find the root FS on the correct USB
device & partition. I have "labeled" the root ext2 FS on the USB
drive, and the program searches for the label by examining the bytes
at a specific offset from the beginning of the
2012 May 25
1
knitr customization
I am trying to transition from Sweave to knitr, but there are a few
things about customization of the appearence of R input and output that
I did not get yet. Maybe somebody on the list can help me.
In my Sweave presentations I used a slanted font for the R input and a
normal font for the output, both in a small font. I also indented
everything by an extra 2em. All this was achieved by the
2010 Jul 13
1
latex table question
Hi:
My head is spinning with this latex doc so hopefully after I align my tables to
the left of the page
my headache are going to be over. I always use:
\hspace*{-0.1in}
to move my figures horizontally to the left margin of the page but the table
below doesn't move at all,
but instead it gets sideways. Not sure if \begin{landscape} has something to do
with it or is just me.
I? hope someone
2013 Nov 05
1
Dynamic list creation (SEXP in C) returns error "unimplemented type (29) in 'duplicate'"
Dear R-devel,
A couple of weeks ago I started to use the R C API for package
development. Without knowing much about C, I've been able to write
some routines sucessfully... until now.
My problem consists in dynamically creating a list ("L1") of lists
using .Call, the tricky part is that each element of the "mother list"
contains two vectors (INTSXP and REALEXP types) with
2008 Jul 27
2
Colors in Sweave
Hi list,
I was using Sweave and was wondering if anyone has had any luck changing the font colors of the code chunks. For instance, in my .Rnw preample I tried including:
===
\usepackage[usenames]{colors}
\definecolor{darkred}{rgb}{0.545,0,0}
\definecolor{midnightblue}{rgb}{0.098,0.098,0.439}
\DefineVerbatimEnvironment{Sinput}{Verbatim}{fontshape=sl,formatcom={\color{midnightblue}}}
2024 Jun 06
4
clarifying and adjusting the C API for R
This is an update on some current work on the C API for use in R
extensions.
The internal R implementation makes use of tens of thousands of C
entry points. On Linux and Windows, which support visibility
restrictions, most of these are visible only within the R executble or
shared library. About 1500 are not hidden and are visible to
dynamically loaded shared libraries, such as ones in packages,
2009 Aug 19
3
Sweave output from print.summary.glm is too wide
Hi all
I am preparing a document using Sweave; a really useful tool. But I am having a problem.
Consider this toy example Sweave file:
\documentclass{article}
\begin{document}
<<echo=TRUE,results=verbatim>>=
options(width=40) # Set width to 40 characters
hide <- capture.output(example(glm)) # Create an example of the problem, but hide the output
summary(glm.D93) #
2011 Jul 13
2
Adding vertical space before and after Sweave chunk
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2017 Oct 22
1
ggplot2 and tikzDevice : problems with accents
Hi all,
I can't fathom why the accented "?" in the following ggplot2 graph makes
R hangs when using tikzdevice,? whereas it works using simple pdf device.
######
library(tikzDevice)
library(ggplot2)
options(tikzDefaultEngine = "luatex")
tikzLualatexPackages =c(
? "\\usepackage{tikz}\n",
? "\\usepackage[active,
tightpage,psfixbb]{preview}\n",
?