similar to: how to restrict a parameter in optim()

Displaying 20 results from an estimated 100 matches similar to: "how to restrict a parameter in optim()"

2010 Mar 22
2
SEM PACKAGE
Dear all, I would like to know if it is possible to estimate multi-group SEM by using R... Thank you _________________________________________________________________ ¿Cuánto espacio necesitas para guardar tus emails? Con Hotmail tienes 5GB y puede ampliarse a más. [[alternative HTML version deleted]]
2012 Jul 18
2
[LLVMdev] [NVPTX] PTXAS - Unimplemented feature: labels as initial values
Dear NVPTX community, PTXAS fails to compile the ptx code generated by NVPTX. Is it an issue of backend or an issue of PTXAS or a known reasonable restriction? Thanks, - Dima. > cat test.ll ; ModuleID = '__kernelgen_main_module' target datalayout = "e-p:64:64-i64:64:64-f64:64:64-n1:8:16:32:64" target triple = "ptx64-unknown-unknown" %struct.__st_parameter_dt.0.4
2010 Sep 08
0
programming continuous-time markov model likelihood
Dear all, I need to estimate intensity and probability matrices by the continuous-time markov model... in a first time I used "msm" and it works perfectly. Nevertheless, I have to do other estimations that need programming the likelihood. Is it possible to see somewhere the likelihood used in the msm package? I have readen the papers about likelihood estimation of continuous-time
2010 Sep 08
0
(no subject)
Dear all, I need to estimate intensity and probability matrices by the continuous-time markov model... in a first time I used "msm" and it works perfectly. Nevertheless, I have to do other estimations that need programming the likelihood. Is it possible to see somewhere the likelihood used in the msm package? I have readen the papers about likelihood estimation of continuous-time
2012 Jul 18
0
[LLVMdev] [NVPTX] PTXAS - Unimplemented feature: labels as initial values
In ptx, variables need to be defined before referenced. NVPTX emits the global variables in the order as in the LLVM IR and does not sort them. It is a bug in the NVPTX backend. Thanks. Yuan From: Dmitry N. Mikushin [mailto:maemarcus at gmail.com] Sent: Wednesday, July 18, 2012 7:44 AM To: LLVM-Dev Cc: Justin Holewinski; Yuan Lin Subject: [NVPTX] PTXAS - Unimplemented feature: labels as
2012 Jan 23
2
[LLVMdev] Possible bug in the dragonegg
Hi Duncan, >> #include<stdio.h> >> #include<string.h> >> >> int main(int argc, char** argv){ >> >> char a[8] = "aaaaaaa"; >> char b[8] = "bbbbbbb"; >> >> char *c = (char*) malloc(sizeof(char)*(strlen(a)+strlen(b)+1)); >> memcpy(c, a, strlen(a)); >> memcpy(c + strlen(a), b, strlen(b) + 1); >>
2012 Jan 24
0
[LLVMdev] Possible bug in the dragonegg
Hi Pablo, I can reproduce this with the supplied IR. It is related to the use of __memcpy_chk. As far as I can see it is a bug in lli or the LLVM code generators. Can you please open a bugreport, attaching the LLVM IR. Ciao, Duncan. On 23/01/12 17:00, Pablo Barrio wrote: > Hi Duncan, >>> #include<stdio.h> >>> #include<string.h> >>> >>> int
2012 Jan 23
0
[LLVMdev] Possible bug in the dragonegg
Hi Pablo, > I came across something that seems to be a bug in the dragonegg option that > emits LLVM IR. ¿Can anybody reproduce the error, or see what's wrong? I can't reproduce this on x86-64 linux with latest LLVM+dragonegg+gcc-4.6. ¿Should I > post it somewhere else in case it's really a bug? Thanks ahead! > > With this simple program: > * > #include
2012 Jan 23
2
[LLVMdev] Possible bug in the dragonegg
Hi all, I came across something that seems to be a bug in the dragonegg option that emits LLVM IR. ¿Can anybody reproduce the error, or see what's wrong? ¿Should I post it somewhere else in case it's really a bug? Thanks ahead! With this simple program: * #include <stdio.h> #include <string.h> int main(int argc, char** argv){ char a[8] = "aaaaaaa";
2011 Apr 22
2
writing/appending a text file
Hello I'm fairly new to R. I have a script which produces a 1-column vector (numeric). I can write it to a text file using the write command. What I want to do is to run the script a number of times on different input files, producing a different 1-column vector each time and save all the vectors to a text file so that each vector is one separate column in the text file. I had thought of
2009 Nov 20
2
Problem with Numerical derivatives (numDeriv) and mvtnorm
I'm trying to obtain numerical derivative of a probability computed with mvtnorm with respect to its parameters using grad() and jacobian() from NumDeriv. To simplify the matter, here is an example: PP1 <- function(p){ thetac <- p thetae <- 0.323340333 thetab <- -0.280970036 thetao <- 0.770768082 ssigma <- diag(4) ssigma[1,2] <- 0.229502120
2007 Apr 17
1
VS: Potential bug in winbindd
Hey, I have a problem with the winbind daemon, while it succesfully authenticates and gets most information, some groups that shouldn't be empty are empty (including "Domain Users"), and some groups that contain other groups (that are empty), only contain the users added plainly. The server is connecting to an AD in ADS mode, Samba version is Version 3.0.23c-2.el5.2, as part of
2006 May 10
2
[LLVMdev] SCCP
Chris Lattner wrote: > On Tue, 9 May 2006, Nick Lewycky wrote: > >>>> For an analysis pass, I'm interested in reading the lattice values >>>> calculated by SCCP. Should I split the current SCCP optimization >>>> into an >>>> analysis piece and the optimization that depends on it, so that I can >>>> use its analysis results?
2012 Jan 24
1
[LLVMdev] Possible bug in the dragonegg
Hi Pablo, in fact this is coming from the "ssp" attribute on main, which turns on LLVM's stack protection logic. I have no idea what that does exactly, but it seems to be causing the problem. On ubuntu systems it is enabled by default. You can turn it off by passing -fno-stack-protector to dragonegg. However please still open a bugreport since stack protection is supposed to work.
2006 May 10
0
[LLVMdev] SCCP
On Tue, 9 May 2006, Nick Lewycky wrote: >> You could do that, but SCCPSolver isn't really useful to mainline LLVM >> for anything other than SCCP and IPSCCP, so we don't need it in a public >> header. Out of curiosity, what are you looking to use the latice values >> for? Why not just run SCCP and then look at the transformed code? > > I was planning to
2006 Mar 31
0
get_md4pw: Workstation PC-WINSIC$: no account in domain
hello to all i use a samba server (3.0.14a) PDC which makes the users and computers authentication on a LDAP server (openldap on debian sarge) (people branch and computers branch).. does somebody had this problem? when a user connects from a PC which is in a windows domain, the authentication doesn't succeed for the following reason the error message is (translated from french message
2005 Apr 28
0
[LLVMdev] SimplifyLibCalls Pass -- Help!
I've been working on some basic library call optimizations, the SimplifyLibCalls pass (lib/Transforms/IPO/SimplifyLibCalls.cpp). Tonight I conjured up a list of the potential libcall simplifications that could be done. There's a lot of them. I could use some help if anyone wants to pitch in. The individual optimizations are self-contained and fairly straight forward to write. They range
2012 Dec 25
2
[LLVMdev] [DragonEgg] Strange call to @"\01__isoc99_fscanf"
Dear all, First of all, Merry Christmas! :) While testing a File I/O sample program, I've encountered a link failure due to missing implementation of "\01__isoc99_fscanf" function. I think this function should be named "__isoc99_fscanf" instead. Please see the program code and LLVM IR generated by DragonEgg and clang below. It shows that clang generates
2012 Jun 24
0
nouveau _BIOS method
Hi to all! I have a problem with a nvidia geforce 520mx [NVd0 generation card (0x0d9110a1)] i have on my notebook (samsung 3 series). In practice i'm not able to use it with bumblebee and bbswitch. The dmesg message is: [ 13.507435] nouveau 0000:01:00.0: power state changed by ACPI to D0 [ 13.507440] nouveau 0000:01:00.0: power state changed by ACPI to D0 [ 13.507448] nouveau
2009 Jun 19
1
paramter restriction in optim
Hi, I would like to know if you could help me... I need to restrict a parameter in a problem of optimization but I don't know how to do it. function(s){ c<-s[1] a1<-s[2] a2<-s[2] return(-sum()) } optim(...) In fact I need to know how to specify 0<=a1<=1. I've tried but without success Thank you -- View this message in context: