Displaying 20 results from an estimated 900 matches similar to: "stack imbalance in max.col for non-real matrices"
2012 Dec 06
1
Use .Call interface
Hi
I've written the following program:
#include <R.h>
#include <Rdefines.h>
#include "Projector.h"
SEXP Projector2(SEXP L, SEXP G, SEXP W, SEXP xymod, SEXP modif){
int nprot=0;
PROTECT(L=AS_NUMERIC(L));nprot++;
PROTECT(G=AS_NUMERIC(G));nprot++;
PROTECT(W=AS_NUMERIC(W));nprot++;
PROTECT(xymod=AS_INTEGER(xymod));nprot++;
PROTECT(modif=AS_NUMERIC(modif));nprot++;
2012 Dec 15
3
interfacing with .Call
Hi
My code is as following:
#include <R.h>
#include <Rinternals.h>
//* the Projector part *//
void Projector(double *L, int *dimL, double *G, int *dimG, double *W, int
*dimW, int *xymod, int *dimxy, double *modif, int *dimif, double *Lsum)
{ ...}
//* the interface part *//
#define getDim(A) INTEGER(coerceVector(getAttrib(A,R_DimSymbol), INTSXP))
SEXP Projector5(SEXP L, SEXP G,
2009 Jun 30
1
Can't play Last Chaos on Ubuntu 9.04 With newest wine 1.01
I have Ubuntu 9.04 i installed the latest wine and i get to the piont after u hit start on the loader then the screen comes up that says loading the send error screen comes up what to i do or is there anything i missed or can anything be done also i tryed restalling both still anything and on a side note Rohan blood fread don't work as well same thing comes up after the loader and the nprot
2004 Nov 29
1
data is getting corrupted
I've been attempting to perform some analysis on a model that was
interfaced with R (R calls a library that takes SEXPs and converts the
data frames into the internal structures of data), and I notice that for
small data.frames the vectors don't get corrupt (n<200-ish). When I pass
in larger data.frames, the vectors will become corrupt. I've been
PROTECTING the heck out of
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
2008 Apr 10
1
Computing time when calling C functions - why does an extra function call induce such an overhead?
Dear list,
I am a little puzzled by computing time in connection with calling C functions. With the function mysolve1 given below I solve Ax=B, where the actual matrix operation takes place in mysolve2. Doing this 5000 times takes 3.51 secs. However, if I move the actual matrix inversion part into mysolve1 (by uncommenting the two commented lines and skip the call to mysolve2) then the
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>
2005 Aug 20
1
Implementing a single-precision class with raw
A package that I develop (xcms) sometimes needs to read and process
vectors several hundreds of megabytes in size. (They only represent
parts of a large data sets which can approach nearly 100GB.)
Unfortunately, R sometimes hits the 2GB memory limit of Win32. To help
cut the memory footprint in half, I'm implementing a "float" class as a
subclass of "raw". Because
2007 Jun 04
2
missing IntegerFromString()
I have created a DLL not so long ago using C code. My code used the
IntegerFromString() function that used to be exported in the
Rinternals.h header file (and thus easily accessible). Recently I
upgraded to R 2.5.0 and my DLL stopped working. I see that the
IntegerFromString() function is not exported in any of the header files
in the RHOME\include directory. Is it possible for me to use it
2014 Oct 22
2
Using a custom memory allocation function in R
Heads up: I posted this question on Stackoverflow yesterday
(http://stackoverflow.com/questions/26484103/using-a-custom-memory-allocation-function-in-r).
So far I haven?t gotten a response and I thought this could be an even
better place to ask such a question.
I would like to be able to use my own memory allocation function for
certain data structures (real valued vectors and arrays) in R. The
2023 Nov 07
1
c(NA, 0+1i) not the same as c(as.complex(NA), 0+1i)?
Thanks Martin. My hang-up was not on what the outcome of as.complex(NA)
should be, but rather, how I should read code like c(x, y) generally. Till
now, I have thought of it like 'c(x, y)' is c(as(x, typeof(y)), y)` when
"type(y) > type(x)". Basically in my mind, "coercion" in R <->
as.<newtype>(.) (or coerceVector() in C).
So I tracked down the source
2011 Oct 24
2
C function is wrong under Windows 7
Dear mailing list,
I have a C function that gives me a wrong result when I run it under Windows
7.
This is the code under Linux (RHEL5):
> library(phenoTest)
> data(epheno)
> sign <- sample(featureNames(epheno))[1:20]
> score <- getFc(epheno)[,1]
> head(score)
1007_s_at 1053_at 117_at 121_at 1255_g_at 1294_at
-1.183019 1.113544 1.186186 -1.034779 -1.044456
2020 Aug 23
2
sum() vs cumsum() implicit type coercion
Hi
I noticed a small inconsistency when using sum() vs cumsum()
I have a char-based series
> tryjpy$long
[1] "0.0022" "-0.0002" "-0.0149" "-0.0023" "-0.0342" "-0.0245" "-0.0022"
[8] "0.0003" "-0.0001" "-0.0004" "-0.0036" "-0.001" "-0.0011"
2007 Aug 23
1
.Call and to reclaim the memory by allocVector
Hi,
I am not sure if this is a bug and I apologize if it is something I
didn't read carefully in the R extension manual. My initial search on the
R help and R devel list archive didn't find useful information.
I am using .Call (as written in the R extension manual) for the C code
and have found that the .Call didn't release the memory claimed by
allocVector. Even after applying
2007 Aug 23
1
.Call and to reclaim the memory by allocVector
Hi,
I am not sure if this is a bug and I apologize if it is something I
didn't read carefully in the R extension manual. My initial search on the
R help and R devel list archive didn't find useful information.
I am using .Call (as written in the R extension manual) for the C code
and have found that the .Call didn't release the memory claimed by
allocVector. Even after applying
2008 Apr 05
2
Adding a Matrix Exponentiation Operator
Hi all
I recently started to write a matrix exponentiation operator for R (by
adding a new operator definition to names.c, and adding the following code
to arrays.c). It is not finished yet, but I would like to solicit some
comments, as there are a few areas of R's internals that I am still feeling
my way around.
Firstly:
1) Would there be interest in adding a new operator %^% that performs
2023 Nov 08
1
c(NA, 0+1i) not the same as c(as.complex(NA), 0+1i)?
So, to summarize, the open questions are:
(1) Should as.complex(NA_character_) give complex(r=NA_real_, i=0)
instead of NA_complex_?
(2) Should the first argument in c(NA, x) and c(NA_integer_, x),
where typeof(x) == "complex", be promoted to complex(r=NA_real_, i=0)
instead of NA_complex_?
My opinions:
(1) No. The imaginary part of the
2023 Nov 06
1
c(NA, 0+1i) not the same as c(as.complex(NA), 0+1i)?
>>>>> Michael Chirico
>>>>> on Sun, 5 Nov 2023 09:41:42 -0800 writes:
> This is another follow-up to the thread from September
> "Recent changes to as.complex(NA_real_)".
> A test in data.table was broken by the changes for NA
> coercion to complex; the breakage essentially comes from
> c(NA, 0+1i)
> # vs
2023 Nov 09
1
c(NA, 0+1i) not the same as c(as.complex(NA), 0+1i)?
>>>>> Mikael Jagan
>>>>> on Wed, 8 Nov 2023 11:13:18 -0500 writes:
> So, to summarize, the open questions are:
> (1) Should as.complex(NA_character_) give complex(r=NA_real_, i=0)
> instead of NA_complex_?
> (2) Should the first argument in c(NA, x) and c(NA_integer_, x),
> where typeof(x) == "complex", be promoted
2023 Nov 05
2
c(NA, 0+1i) not the same as c(as.complex(NA), 0+1i)?
This is another follow-up to the thread from September "Recent changes to
as.complex(NA_real_)".
A test in data.table was broken by the changes for NA coercion to complex;
the breakage essentially comes from
c(NA, 0+1i)
# vs
c(as.complex(NA), 0+1i)
The former is the output we tested against; the latter is essentially (via
coerceVector() in C) what's generated by our