Displaying 20 results from an estimated 300 matches similar to: "Matrix with random number"
2009 Feb 13
2
Generate random numbers in Fortran
Hi!!!
It would like to know if it exists a form to use the functions to
generate variates in FORTRAN with the same easiness I use that them in
C? Or not?
If yes. They would have some example? I would like to use the functions rbeta, rlnorm and others!
Sorry my english..rsrsrs
Thanks!!!
Fábio Mathias Corrêa University Federal of the Lavras - Brazil
Veja quais são os
2009 May 04
1
how to change nlme() contrast parametrization?
How to set the nlme() function to return the answer without the intercept parametrization?
#=========================================================================================
library(nlme)
Soybean[1:3, ]
(fm1Soy.lis <- nlsList(weight ~ SSlogis(Time, Asym, xmid, scal),
data = Soybean))
(fm1Soy.nlme <- nlme(fm1Soy.lis))
fm2Soy.nlme <- update(fm1Soy.nlme,
2009 Jul 21
1
strange bug? with R CMD check
Hello,
I am trying to get a package to pass R CMD check on an iMac running
Mac OS X. When the package is named safeBinaryRegression I get the
following warning from R CMD check:
* checking whether the name space can be loaded with stated
dependencies ... WARNING
Error in dyn.load(file, DLLpath = DLLpath, ...) :
function 'make_lp' not provided by package 'lpSolveAPI'
2011 Jul 01
2
Initiating in BNArray
Hi,
I'm trying to understand some details about an example maintened in [1].
According that link, I have total.data as a data set (am I right?).
But I don't understand how is built that table.
I saved the dataset in a file, with dput(), and had something like this:
structure(list(df.all = structure(list(V1 = structure(c(1L, 2L,
3L, 4L, 5L, 6L, 7L, 8L, 9L, 10L, 11L, 12L, 13L, 14L, 15L,
2010 Sep 29
1
location of Rconfig.h when using architecture-dependent subdirs
Hello,
I just tried configuring R to use architecture-dependent subdirs
$ r_arch=x86_64 ./configure --prefix=/u/smat/konis/testdir
on a Debain Squeeze box
$ uname -a
Linux smapc007 2.6.32-5-686 #1 SMP Sat Sep 18 02:14:45 UTC 2010 i686
GNU/Linux
After building and installing, the Rconfig.h ended up in
.../lib/R/include/x86_64 but R.h still includes it as
#include <Rconfig.h>
2008 Sep 02
1
the %ProgramFiles% variable
Hello,
I want to use the %ProgramFiles% variable in a Sys.setenv (R 2.7.2,
Windows) but it always seems to get handled literally. For instance,
in cmd.exe I get what I want
C:\Documents and Settings\user>echo %ProgramFiles%
C:\Program Files
but in R
> system("echo %ProgramFiles%")
%ProgramFiles%
nope. Is there a way to use %ProgramFIles% or get the corresponding
2009 Aug 12
2
Problem with function in fortran 95
I am writing a function in fortran 95, but the intrinsic function MATMUL is not working properly. Here's an example.
SUBROUTINE mymult(x,y,res,m,n)
IMPLICIT NONE
INTEGER :: m,n
REAL :: x, y, res
DIMENSION :: x(m,n), y(n,m), res(m,m)
res = MATMUL(x,y)
END SUBROUTINE mymult
R CMD SHLIB mat.f95
In R:
dyn.load("mat.so")
x <-
2004 Jan 19
1
memory limitation with Fortran interface
Hi,
I'm using R 7.0 under Linux as a programming interface to Fortran (g77
v0.5.24).
Basically, what I want to do is to call a fortran subroutine of mine
which performs MCMC computations.
Apparently I'm getting into memory management problems.
To track the problem I wrote the following small Fortran subroutine
(saved as test.f) :
subroutine test(n,p)
implicit none
2012 Feb 08
2
[LLVMdev] BackedgeTakenCount calculation for fortran loops and DragonEgg gfortran-4.6
Hello, I'm finding problems with BackEdgeTaken count calculation in
even simple fortran loops with gfortran-4.6 + DragonEgg 3.0.
Even for simple double loops like this one:
program test2
integer i,j,k
dimension k(100,100)
do j=1,100
do i=1,100
k(i,j) = i
enddo
enddo
write(*,*) k(1,30)
end
make the ScalarEvolution
2009 Aug 31
2
Problem in matrix definition?
I'm implementing a function to compute the moore-penrose inverse, using a code from the article: Fast Computation of Moore-Penrose Inverse Matrices. Neural Information Processing - Letters and Reviews. Vol.8, No.2, August 2005
However, the R presents an error message when I use the geninv.
The odd thing is that the error occurs for some arrays, however they have the same size. And the R
2007 Dec 09
2
adjusting "levels" after subset a table
Um texto embutido e sem conjunto de caracteres especificado associado...
Nome: n?o dispon?vel
Url: https://stat.ethz.ch/pipermail/r-help/attachments/20071208/5409f1a7/attachment.pl
2012 Apr 13
2
Can't read a binary file
Hi, I've read up on readBin() and chapter 6 in the R Data Import/Export manual, but I still can't read a binary file. Here is how the creator of the file described the code that would be needed in Fortran:
"Every record has a return in fortran. The length of each record is nx*ny*4. To read you would use the following:
nlayx = nx*ny*4
do iz=1,nz,4
read(binary file) var(1:nlayx)
2012 Feb 08
2
[LLVMdev] BackedgeTakenCount calculation for fortran loops and DragonEgg gfortran-4.6
Attached
2012/2/8 Marcello Maggioni <hayarms at gmail.com>:
> Mmm, sorry, the patch I posted crashes if ExitBr is null (which it may
> be ...) , this one should be ok (and passess all the ScalarEvolution
> tests in LLVM):
>
> diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
> index daf7742..b10fab2 100644
> ---
2012 Jul 31
3
[LLVMdev] [DragonEgg] Mysterious FRAME coming from gimple to LLVM
Hi Duncan,
A DragonEgg/GCC-related question: do you know where these strange FRAME
tokens originate from (e.g. %struct.FRAME.matmul)? Compiling simple Fortran
code with DragonEgg:
> cat matmul.f90
subroutine matmul(nx, ny, nz)
implicit none
integer :: nx, ny, nz
real, dimension(nx, ny) :: A
real, dimension(ny, nz) :: B
real, dimension(nx, nz) :: C
integer :: i, j, k
real,
2007 Nov 21
3
How can I save a plot ?
I recently installed R 2.6 on Linux/SuSE
When I was running the previous version on Windows I was able to save my
plots from a script.
There was a command "savePlot" that is no more retrieved in the last
version.
In this scenario, how can I tell R to save the currently displayed plot to a
file ?
The "save" command is generic and do not know how to tell R that the plot is
to be
2012 Feb 08
2
[LLVMdev] BackedgeTakenCount calculation for fortran loops and DragonEgg gfortran-4.6
Well, it wasn't intended as a "real" patch to be included , but more
as a "proof of concept" for a solution. Do you think it is a valid
solution and I'm correct in my assumption? If so then I'll clean up
the patch and attach a testcase for inclusion.
Thanks!
Marcello
2012/2/9 Nick Lewycky <nlewycky at google.com>:
> Your patch should include a testcase,
2009 Apr 13
5
[LLVMdev] MemoryDependenceAnalysis
Hello,
I have a code similar to the following:
program test
integer i, j, N
real B(10)
call bar(N, 8)
N = N+1
do i = 1, N
B(i) = (i+5)/(i+3)
enddo
j = N/2
N = N+7
call IMPORTANT_F(B, N, i, j)
end program
and I am trying to use dependence
2012 Feb 09
2
[LLVMdev] BackedgeTakenCount calculation for fortran loops and DragonEgg gfortran-4.6
This is the .ll for that graph (attached). I think I understand what
you are saying.
This particular testcase returns CNC not because the exit block
doesn't have a unique predecessor, but because the unique predecessor
(the inner loop block) has a successor that is inside the loop (in
this case itself, because it's the inner loop block).
That doesn't change, anyway, the assuption that
2012 Feb 08
0
[LLVMdev] BackedgeTakenCount calculation for fortran loops and DragonEgg gfortran-4.6
Mmm, sorry, the patch I posted crashes if ExitBr is null (which it may
be ...) , this one should be ok (and passess all the ScalarEvolution
tests in LLVM):
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index daf7742..b10fab2 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -4293,9 +4293,15 @@
2005 Jun 15
1
Reducing the FPR (false positive rate)
Hello R-USERS,
I think some people didn't understand my question. What I want is to
use the training set to minimize the FALSE POSITIVE RATE.
I think it is possible. I sacrifice ACCURACY to have less FALSE
POSITIVES. I don't want a classifier result with 5% of FPR and, for
example, 93% of ACCURACY. I want a 1% FPR sacrificing the 93% ACCURACY.
Do you know how can I do this? I really