similar to: Problem with simulation

Dear: I am having trouble solving simultaneous nonlinear equations by R. I have been using BBsolve (BB) to do so. Though the function is very strong, still the program doesn't converge. I have tried all (according to my small knowledge) the options described in the help file. Now I am trying to find something else than BBsolve for solving simultaneous nonlinear equations by R. Any idea or

Hi r-users, I would like to solve system of nonlinear equation using BBsolve function and below is my code.  I have 4 parameters and I have 4 eqns. mgf_gammasum <- function(p) { t  <- rep(NA, length(p)) mn <- 142.36 vr <- 9335.69 sk <- 0.8139635 kur <- 3.252591 rh  <- 0.896 # cumulants k1 <- p[1]*(p[2]+p[3]) k2 <- p[1]*(2*p[2]*p[3]*p[4] +p[2]^2+p[3]^2) k3 <-

Hi Mian, Looking at the runlog, everything seems fine until LLVM attempts to use lseek() on a file. You see the PANIC because Horizon hasn't implemented lseek yet. Obviously the version of GlibC I was using does not use lseek in that circumstance, but yours does. You just need to implement lseek :) Cheers, James -----Original Message----- From: Mian M. Hamayun

Hi James, I have two questions for you. Firstly, what is the role of 'module' in init.cc? I can see that its being treated like it is a 'bytecode' file, as we open it and then pass it to the ByteCoder and eventually construct llvm module from it. Like In file init.cc, line:121 FILE *stream = fopen("/module", "rb"); ... fread(c, 1, sz,

Thanks Eric, Jim and Geovani for your responses. Yes, we can combine two or more bitcode modules using llvm-ld and in this way functions can be inlined and optimized during this process. But I am also looking into the possibility of doing the same using LLVM Pass Manager (Without using llvm-ld). This looks difficult due to the fact that the function definitions ought to be in the same module

Hi, I tried this as well, using the following line to add function declaration to the caller module. Function::Create(FT, Function::ExternalLinkage, "gcd", mod); Where "FT" is the same as before. And the output produced by the PrintModulePass becomes: ; ModuleID = 'GCDMain' declare i32 @gcd(i32, i32) define i32 @main() { EntryBlock: %tmp = call i32 @gcd(i32

On Wed, Aug 31, 2011 at 10:00 AM, Mian M. Hamayun <mian-muhammad.hamayun at imag.fr> wrote: > Hello Everyone, > > I am trying to create two modules in LLVM, where first module contains the > definition of a function, gcd in this example and another module contains a > call to this function. You can't reference a global in one module in another module. Either stick with

On Fri, Sep 2, 2011 at 4:23 AM, Mian M. Hamayun <mian-muhammad.hamayun at imag.fr> wrote: > But I am also looking into the possibility of doing the same using LLVM Pass > Manager (Without using llvm-ld). This looks difficult due to the fact that > the function definitions ought to be in the same module as the caller, in > order to be inlined and then optimized onwards, I guess

On Wed, Aug 31, 2011 at 10:54 AM, Mian M. Hamayun <mian-muhammad.hamayun at imag.fr> wrote: > Hi, > > I tried this as well, using the following line to add function declaration > to the caller module. > > Function::Create(FT, Function::ExternalLinkage, "gcd", mod); > > Where "FT" is the same as before. And the output produced by the >

Hi Everyone, Hopefully this question is not too absurd. Actually I created an example in LLVM, where I generate two modules, one containing the function definition and the other module calling this function. (Question related to this was posted on this mailing list recently) Now I want to know, whether it is possible to "inline" the definition of this function in the caller module,

Hi, First question: "/module" is mapped to a special file that reads a kernel module passed in by the bootloader. Much like GRUB, kiwi's bootloader loads a kernel and can load one or more extra files into memory. These are passed to the kernel. The horizon kernel expects one file, which it makes accessible at "/module". This should be set up to be whatever you set

To do it manually, llvm-ld your modules to get a single module with both, then run opt on the result to optimize it. From source code, you can just use -O4 to the compiler on a system with a suitable linker (standard ld on OSX; binutils+gold plugin on Linux, for example). -Jim On Sep 1, 2011, at 9:27 AM, Mian M. Hamayun wrote: > Hi Everyone, > > Hopefully this question is not too

Dear Dr. Gilbert, Dr. Varadhan and all R-help list members, I'm using the function BBsolve( ) and I have some questions on the stopping criterion "maxit" and "noimp" specified in the option "control". Here are two such examples I'm having problem with. In these two examples, the function BBsolve( ) always stops at iteration 100, overlooking the values

Hi, I am just a little confused of mian effect in the analysis of variance (ANOVA) when you include or do not include an interaction term. Let's assume a simple case of 2-way ANOVA with 2 factors A and B, each with 2 levels. If it shows that main effect for A is significant when the interaction between A and B is NOT included, and the main effect for A is NOT significant when the interaction

Dear All, I have tested a few examples of LLVM-JIT Framework on Linux x86 Machine. So generating functions on the fly and then executing them is OK on linux i.e. i686-pc-linux-gnu My question is: Can we use the LLVM-JIT on a baremetal x86 machine ? Actually my target is a virtual machine, and I need some dynamic code generation support. I intend to use LLVM-JIT (if possible) for this

Hi, I'm using maxlik with functions specified (L, his gradient & hessian). Now I would like determine some robust standard errors of my estimators. So I 'm try to use vcovHC, or hccm or robcov for example but in use one of them with my result of maxlik, I've a the following error message : Erreur dans terms.default(object) : no terms component Is there some attributes

Hi all; I recently have been used 'maxLik' function for maximizing G2StNV178 function with gradient function gradlik; for receiving this goal, I write the following program; but I have been seen an error  in calling gradient  function; The maxLik function can't enter gradlik function (definition of gradient function); I guess my mistake is in line ******** ,that the vector  ‘h’ is

Oh Hi Arne, You may recall we visited with this before. I do not believe the problem is algorithm specific. The algorithms I use the most often are BFGS and BHHH (or maxBFGS and maxBHHH). For simple econometric models such as probit, Tobit, and evening sample selection models, old and new versions of R work equally well (I write my own programs and do not use ones from AER or sampleSekection).

Hi Steven Which optimisation algorithms in maxLik work better under R-3.0.3 than under the current version of R? /Arne On Thu, 8 Oct 2020 at 21:05, Steven Yen <styen at ntu.edu.tw> wrote: > > Hmm. You raised an interesting point. Actually I am not having problems with aod per se?-it is just a supporting package I need while using old R. The essential package I need, maxLik, simply

Hi R-helpers, Is it possible that I have the estimates from each step/iteration shown on the computer screen in order to monitor the process while I am using Optim or MaxLik? Thanks for your help. Maomao [[alternative HTML version deleted]]