Displaying 20 results from an estimated 42 matches for "sobol".
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2011 Oct 22
2
Segfault and bad output with fOptions::rnorm.sobol
I have had the following problem with R 2.10, 2.13.1, and 2.13.2, running on
Ubuntu linux 10.04, xubuntu 11.10, and a version of Redhat (I think 5).
rnorm.sobol is producing impossible random values, and occasionally the
routine crashes. Here are samples of the output and the crash message.
library(fOptions)
Zs <- rnorm.sobol(50, dimension=1)
produces this:
[,1]
[1,] 0.000000e+00
[2,] -3.550884e-28
[3,] -3.550884e-28
[4,] 7.29763...
2017 May 09
2
registering Fortran routines in R packages
...n.r-project.org/doc/manuals/r-release/R-exts.html#Registering-native-routines and looking at what is done in stats package, I first thought that the following code will do the job:
static const R_FortranMethodDef FortEntries[] = {
{"halton", (DL_FUNC) &F77_NAME(HALTON), 7},
{"sobol", (DL_FUNC) &F77_NAME(SOBOL), 11},
{NULL, NULL, 0}
};
But I got error messages when building : use of undeclared identifier ?SOBOL_?. I also tried in lower case sobol and halton.
Looking at expm package https://r-forge.r-project.org/scm/viewvc.php/pkg/src/init.c?view=markup&revisio...
2008 Aug 01
0
sensitivity
...Here are the new features list:
New functionalities:
* sequential bifurcation method (sb function) [VERSION ALPHA]
* 3D plot 3D for the Morris method (function plot3d.morris, needs the rgl package)
* simplex designs for Morris method (function morris)
* multidimensional Sobol indices (function sobol)
* argument return.var in sobol methods in order to have local variables
which are not saved in the output object, for example the bootstrap replicates
(functions sobol and sobol2002)
* template files writing (function template.replace)
*...
2008 Aug 01
0
sensitivity
...Here are the new features list:
New functionalities:
* sequential bifurcation method (sb function) [VERSION ALPHA]
* 3D plot 3D for the Morris method (function plot3d.morris, needs the rgl package)
* simplex designs for Morris method (function morris)
* multidimensional Sobol indices (function sobol)
* argument return.var in sobol methods in order to have local variables
which are not saved in the output object, for example the bootstrap replicates
(functions sobol and sobol2002)
* template files writing (function template.replace)
*...
2017 May 10
3
registering Fortran routines in R packages
Thanks for your email.
I try to change the name in lowercase but it conflicts with a C implementation also named halton. So I rename the C function halton2() and sobol2() while the Fortran function are HALTON() and SOBOL() (I also try lower case in the Fortran code). Unfortunately, it does not help since I get
init.c:97:25: error: use of undeclared identifier 'halton_'; did you mean 'halton2'?
{"halton", (DL_FUNC) &F77_SUB(halton)...
2012 Jan 19
0
Global sensitivity indices using sensitivity package: sobol, sobol2002
Dear R users,
I have been trying to estimate global sensitivity indices such as the sobol
1st and 2nd order indices. I managed to obtain the PRCC.
The example presented in the sensitivity package on sobol2002 seems to work
well for linear models: for example: calculate y for given x values.
However, when trying to apply this technique to dynamic models (SIR type),
the error messages...
2017 May 09
0
registering Fortran routines in R packages
...c/manuals/r-release/R-exts.html#Registering-native-routines and looking at what is done in stats package, I first thought that the following code will do the job:
>
> static const R_FortranMethodDef FortEntries[] = {
> {"halton", (DL_FUNC) &F77_NAME(HALTON), 7},
> {"sobol", (DL_FUNC) &F77_NAME(SOBOL), 11},
> {NULL, NULL, 0}
> };
>
> But I got error messages when building : use of undeclared identifier ?SOBOL_?. I also tried in lower case sobol and halton.
>
> Looking at expm package https://r-forge.r-project.org/scm/viewvc.php/pkg/src/i...
2008 Apr 26
6
quasi-random sequences
...rm(N, mean = 0 , sd= 1)
> plot(positions,type="p",cex=sizes)
My problem is to avoid collisions (overlap, really) between the
points. I would like some random pattern, but with a minimum
exclusion distance. In looking up "Numerical recipes in C", I found
out about some Sobol quasi-random sequences, which one can call from
the gsl package,
> library(gsl)
>
> g <- qrng_alloc(type="sobol",dim=2)
> qrng_get(g,n= N) ->xy
>
> plot((xy),t="p",cex=0.5)
but this does not look very random: I clearly see some pattern
(diagonals,...
2007 Oct 29
2
Changing size of lattice plot?
Hi
I am having a bit of difficulty with changing the canvas size on a
trellis/lattice plot. I am plotting two "cubes" of 3-dimensional random
numbers, as follows:
library(gsl)
library(lattice)
q <- qrng_alloc(type="sobol", 3)
npoints <- 200
rs <- qrng_get(q,npoints)
# Plot the normal variates in a 3-dim cube
p1 <- cloud(rnorm(npoints) ~ rnorm(npoints) + rnorm(npoints), xlab="x",
ylab="y",
zlab="z", pch=21, main=paste(npoints,"3-Dimensional ~N(0,1)"))
p2 <- c...
2006 Mar 31
1
Fortran and C entry point problem.
...ror messages.
I then open R and tests out two functions and get:
> pgl(0.2,1,2,3,4)
Error in .C("gl_fmkl_distfunc", lambdas[1], lambdas[2], lambdas[3],
lambdas[4], :
C entry point "gl_fmkl_distfunc" not in DLL for package
"mypackage"
> runif.sobol(10,5)
Error in .Fortran("sobol", as.double(qn), as.integer(n),
as.integer(dimension), :
Fortran entry point "sobol_" not in DLL for package "mypackage"
Alternatively running C CMD check mypackage will also pick up these
errors when they try to run th...
2003 Aug 05
1
So now I'm playing around with Queues....
and I found a reference to an AgentLogin.rtf. Looks great, except I can't
get it to work.
queues.conf:
[sjs-testq]
music = default
timeout = 1
retry = 1
maxlen = 0
member => Agent/10001
agents.conf:
agent => 10001,1234,Steve Sobol
extensions.conf:
(I have a phone line set up on which the main menu tells you
to press 1 to be added to queue. Pressing 1 lands you here)
exten => 1,1,playback(auth-thankyou)
exten => 1,2,queue,sjs-testq <<--- I don't think this is right!
exten => 1,3,goto(1,1)
(From the ag...
2006 Mar 31
1
Fortran and C entry point problem.
...ror messages.
I then open R and tests out two functions and get:
> pgl(0.2,1,2,3,4)
Error in .C("gl_fmkl_distfunc", lambdas[1], lambdas[2], lambdas[3],
lambdas[4], :
C entry point "gl_fmkl_distfunc" not in DLL for package
"mypackage"
> runif.sobol(10,5)
Error in .Fortran("sobol", as.double(qn), as.integer(n),
as.integer(dimension), :
Fortran entry point "sobol_" not in DLL for package "mypackage"
Alternatively running C CMD check mypackage will also pick up these
errors when they try to run th...
2006 Nov 13
2
STUN with one public and one private IP?
...sonal server.
So I'm wondering... I'm using stund from SourceForge. Is there any reason
I couldn't give the Trixbox's public IP address as the primary and
127.0.0.1 as the secondary? I believe Asterisk is listening on the
loopback interface...
Thanks in advance,
Steve
--
Steve Sobol, Professional Geek ** Java/VB/VC/PHP/Perl ** Linux/*BSD/Windows
Victorville, California PGP:0xE3AE35ED
It's all fun and games until someone starts a bonfire in the living room.
2003 Sep 25
2
AGI: getting the return code from an exec()'d application?
...mand to the server - but the
return code of the print() is not what I want - the return code of the
application is what I want.
How do I exec an app through AGI and get *its* return code?
--
JustThe.net Internet & Multimedia Services
22674 Motnocab Road * Apple Valley, CA 92307-1950
Steve Sobol, Proprietor
888.480.4NET (4638) * 248.724.4NET * sjsobol@JustThe.net
2003 Jul 21
4
Dynamically setting up/tearing down extensions
...uld be used in a production
environment. But I have a lot of questions before I can do that.
BTW, I have looked in the archives, and it's been suggested that maybe AGI
is a better way to handle this sort of thing - but wouldn't the same
issues still exist??
Thanks
SJS
--
Steven J. Sobol, Geek In Charge, JustThe.net
"Microsoft must think they're a navy, they open so many ports."
--Ben Scott on the ISP-TECH mailing list, 18 June 2003
2003 Jul 31
1
PHP API for Manager - Plaintext auth needed?
...ticate using MD5. I would strongly prefer not to
do plaintext authentication at all. Would anyone object to plaintext
authentication being left out?
--
JustThe.net Internet & Multimedia Svcs. [The Fusion of Content & Connectivity]
22674 Motnocab Road * Apple Valley, CA 92307-1950
Steve Sobol, Proprietor
888.480.4NET (4638) * 248.724.4NET * sjsobol@JustThe.net
2003 Sep 08
1
SIP Status Codes
Can anyone give me a pointer to descriptions of the status codes my
Grandstream phone displays? I've looked on Google but can't find a
definitive listing of SIP codes.
--
JustThe.net Internet & Multimedia Services
22674 Motnocab Road * Apple Valley, CA 92307-1950
Steve Sobol, Proprietor
888.480.4NET (4638) * 248.724.4NET * sjsobol@JustThe.net
2003 Oct 14
3
My Grandstream works, but my X-Lite doesn't: no sound after 5sec
...ndstream 101 I'm using is a piece of junk but I don't have the same
problem with it.
Not sure whether the issue is X-Lite or the Asterisk server. Has anyone
else had this problem?
--
JustThe.net Internet & Multimedia Services
22674 Motnocab Road * Apple Valley, CA 92307-1950
Steve Sobol, Proprietor
888.480.4NET (4638) * 248.724.4NET * sjsobol@JustThe.net
2003 Jul 30
3
Manager.pm port
...APIs,
which will be almost identical (at least, to whatever extent is
practical).
Will let y'all know when I have some usable code to show you.
--
JustThe.net Internet & Multimedia Svcs. [The Fusion of Content & Connectivity]
22674 Motnocab Road * Apple Valley, CA 92307-1950
Steve Sobol, Proprietor
888.480.4NET (4638) * 248.724.4NET * sjsobol@JustThe.net
2005 Dec 27
7
help remove duplication in my app
I''m porting an old site of mine into Rails and I''m running into some
duplication that could / needs to be weeded out. For each of my
actions, I have to wrap the view content in the following HTML:
<div class="box">
<img src="/images/content-top2.png" class="border" />
<div class="visible">
# content