Displaying 20 results from an estimated 9000 matches similar to: "R freeze when loading dll with dyn.load"
2009 Mar 23
3
Replacing a few variable values within a DataFrame...
I would like to replace a few varaibles within a data frame.
For example, in the dataframe below (contrived) I would like to replace the current housesize value only if the Location is HSV. However, I would like to leave the other values intact.
I tried "ifelse", but I don't really need the else condition.
test_data2_df<-data.frame(Variables=c("SQR
2008 Jul 08
1
R crash with ATLAS precompiled Rblas.dll on Windows XP Core2 Duo
I noticed a problem using R 2.7.1 on Windows XP SP2 with the precompiled
Atlas Rblas.dll. Running the code below causes R to crash. I started R
using Rgui --vanilla and am using the precompiled Atlas Rblas.dll from
cran.fhcrc.org dated 17-Jul-2007 05:04 for Core2 Duo.
The code that causes the crash:
x <- rnorm(100)
y <- rnorm(100)
z <- rnorm(100)
loess(z ~ x * y)
loess(z ~ x) does
2008 Oct 20
2
R Newbie Question
Hello list,
I just started R today and tried something quite simple. I wanted to
create a colored plot and eventually after hours of fiddling around got
it working. However, my solution seems very suboptimal and I'd really
appreciate your hints on how to improve. I believe that R already offers
many functions I coded (e.g. distance between two vectors, vector
length, vector normalization and
2016 May 19
2
External function resolution: MCJIT vs ORC JIT
Thanks so much! This seems to do the trick. I would have spun my wheels for a long time before discovering all of this, wow.
Do I even want to know what additional chickens need to be sacrificed to get this to work on Windows?
-- lg
> On May 18, 2016, at 1:52 PM, Lang Hames <lhames at gmail.com> wrote:
>
> Hi Larry,
>
> You're basically there, but you're hitting
2016 May 17
3
External function resolution: MCJIT vs ORC JIT
When using ORC JIT, I'm having trouble with external function resolution (that is, of a function defined in the app, with C linkage).
I add a declaration for the function to my IR, and when I use MCJIT, it finds it and all is well, But when I use ORC JIT (I *think* correctly, at least it closely matches what I see in the tutorial), I get an LLVM error, "Program used external function
2016 May 20
0
External function resolution: MCJIT vs ORC JIT
Hi Larry,
Thanks so much! This seems to do the trick. I would have spun my wheels for
> a long time before discovering all of this, wow.
No worries. :)
I'll try to keep this in mind and make sure I address it in future
Kaleidoscope tutorial chapters - these issues tripped me up the first time
I encountered them too.
Do I even want to know what additional chickens need to be sacrificed
2016 May 22
1
External function resolution: MCJIT vs ORC JIT
>> llvm::sys::DynamicLibrary::LoadLibraryPermanently(nullptr)
This is one is a bit tricky and hard to find.
I spent quiet some time digging into MC and ORC JIT execution engines trying to find what makes them work.
The problem is that this trick (LoadLibraryPermanently) happens inside of EngineBuilder, despite that the functionality belongs to a JIT engine itself, not to the builder.
I
2002 Apr 03
1
optim()
I was having some problems persuading optim() to give me the answers I
wanted,
& simplified down to:
sqr<-function(x){(x+1)^2}
optim(1,sqr)
I accept this is a hammer to crack a nut, but was still expecting the
answer -1.
I got:
$par
[1] -0.8
$value
[1] 0.04
$counts
function gradient
12 NA
$convergence
[1] 0
$message
NULL
so I've
2009 Feb 26
2
[LLVMdev] Impressive performance result for LLVM: complex arithmetic
Following a discussion about numerical performance on comp.lang.functional
recently I just tried running a simple C mandelbrot benchmark that uses C99's
complex arithmetic using gcc and llvm-gcc on a 2.1GHz Opteron 2352 running
Debian:
gcc: 5.727s
llvm-gcc: 1.393s
There is still 20% room for improvement but LLVM is >4x faster than gcc here.
Sweet.
Here's the code:
#include
2003 Aug 12
1
Programme Maxstat
Sirs,
I have recently been interested in your Maxstat. I have computed with my own programme the ranks (by using the Kaplan-Meier method and the log-rank test) with the formula (Observed-Expected)/(SQR Var). The results are similar but not exact to the M value obtained with the Maxstat. I would like to know whether you are using some correction or adjustment in computing the different ranks. Thank
2010 Nov 08
1
Exponent of sqr symmetric matrix
Dear R experts,
I really have difficulty when I try to deal with this question.
suppose X is a square symmetric matrix. The exponent of X is defined by the
matrix limit as following:
exp(X) = lim (I + X/n)^n, note: the limit is from n to infinite.
How can I write R function for the above?
Thank you very much
--
View this message in context:
2012 Jan 19
1
cannot dyn.load dll from path
Hello,
I'm on Windows, and according to the documentation R searches along the
search path when looking for dll's for dyn.load.
For illustration, I've copied the XML.dll from package XML in the C:/Temp
folder
if (file.exists("C:/Temp/XML.dll")) {
Sys.setenv(path = paste("C:/Temp;", Sys.getenv("path"), sep=""))
2011 Aug 10
1
Win7 x64 "device not ready" error when DLLpath passed to dyn.load
Hi,
Does anyone have any idea why some installations of 64 bit Windows 7 yields
an error like this when passing DLLpath to dyn.load or library.dynam?
> library(RGtk2)
Error in inDL(x, as.logical(local), as.logical(now), ...) :
unable to load shared object 'c:/R/libuser/RGtk2/libs/x64/
RGtk2.dll':
LoadLibrary failure: The device is not ready.
For now I guess I will fall back to
2005 Apr 27
1
dyn.load(), DLL, Fortran, TLNise software
Dear all,
I would like to call TLNise ("Two-Level Normal indipendent sampling estimation")
software within R.
This software estimates a hierarchical model and it can be download from
Philip Everson's website at
"http://www.swarthmore.edu/NatSci/peverso1/TLNise/tlnise.htm".
The TLNise software consists of:
1) a Fortran source code (tlnisemv1.f) and
2) a Splus code
2000 Jun 19
2
dyn.load error:
Hi,
I have some S functions plus Fortran routines that I want to use in R.
They work in S, but when I try to use "dyn.load" to link fortran codes in
R , I get the following error.
thanks, reza
(I am using R-1.0.1 on windows NT, The name of fortran file (compiled
Ratfor) is deldirld.o and it's in the D:\Reza\476\tv.gonsrc.R\ directory)
>dyn.load("deldirld.o")
Error in
2005 Jun 15
1
coding to generate a matrix to prepare for chi-sqr test f or text mining
I would compile a table of all the words in the dataset (maybe you have it
already), then create a list where each component is an integer vector of
indices of words. That is, replace words by their positions in the table.
>From that sparse form you could create binary features to use with standard
classification methods, or for example compute the X'X matrix for linear
regression
2004 Aug 06
1
streaming with crossfade
Hi list,
I am just wondering if anyone knows a way to stream with automated
crossfading under Linux.
I know that you can stream to icecast from windows using something like
otsjuke, or WinAmp with the SQR crossfading plugin, but am not aware of
anything for Linux that will allow me to stream with gapless output.
Any suggestions greatly appreciated as always.
2004 Nov 12
1
dyn.load problem
Hi R-Users
I wrote 1 week ago asking about a message that appears when I try run
dyn.load.
I'm trying to do an example in C code from "Writing R Extension" to
learn how to do it.
I have R 2.0.0, Rtools, Perl and MinGW as describe in
http://www.murdoch-sutherland.com/Rtools/ with path sets.
When I use C:\R\rw2000\bin>RCMD SHLIB -o C:/dev-cpp/teste.dll
2004 Nov 07
2
Problem with dyn.load()
Hi!
I am studying C language to run with R 2.0.0. My system (Windows ME /BR) is configured to run RCMD ( I have installed ActivePerl, Rtools and MinGW as indicated in http://www.murdoch-sutherland.com/Rtools/ an with correct path).
I would like run the coded write below named conv.c (Example from "Write R Extension") :
#include <R.h>
#include <Rinternals.h>
2004 Jan 20
1
evaluation of discriminant functions+multivariate homosce dasticity
While I don't know anything about Box's M test, I googled around and found a
Matlab M-file that computes it. Below is my straight-forward translation of
the code, without knowing Matlab or the formula (and done in a few minutes).
I hope this demonstrates one of Prof. Ripley's point: If you really want to
shoot yourself in the foot, you can probably program R to do that for you.
[BTW: