similar to: a nlm question

Dear list, hi ! I am a R beginner and I have a function to optimize . alpha = argmin{ f(x,alpha) } I want alpha to be in [0,1]. Is there any function that can work? I use nlm() but i can't fix the domain of alpha. thanks in advance _______________________ Jiang Peng, Ph.D. Candidate Department of Mathematics & Antai college of Economics and Management Shanghai Jiao

Dear R listers, I have a very annoying problem using nlm(). I want to find the minimizer of my target function, if written in \LaTeX is f(\mu1,\mu2,\sigma1,\sigma2) = \sum_i^n( w_ig_t(z_i) ), where g_t(z) is a pdf of bivariate normal distribution and z_i is my samples. I cannot get the estimation result generated by nlm(), and I got the following errors " Error in

Dear R experts, i have a vector z , i have to do something after z is sorted. how can i find the original index, i.e., before sorting, of a certain element in the sorted vector . thanks in advance regards ----------------------------------------------- Peng Jiang ?? ,Ph.D. Candidate Antai College of Economics & Management ???????? Department of Mathematics ??? Shanghai Jiaotong

Hi, Is there any package that I can use to simulate the Gaussian Mixture Model , which is a mixture modeling method that is widely used in statistical learning theory. I know there is a mclust, however, I think it is a little bit different from my problem. Thanks very much.. regards. -------------------------- Peng Jiang ?? Ph.D. Candidate Antai College of Economics &

Hi, dear R experts , I am new. I met this problem when I am trying to learn how to use the nlminb() function. I tried the example which the document provides ( as the following code ) and R gives no response . I don't know whether it is running or not and it takes a very long time but still output nothing so I just close the session window. my question is is there any method

Hi, I first report the installing error to the r-sig-mac mailing list but it seems nobody ever encounter this annoying problem and I got no replies. so I am trying to forward it to this list, hope it never bothers. Anyone had the same problem, or what does the warning message mean ? Thank you in advance ! Begin forwarded message: > From: Peng Jiang <jp021@sjtu.edu.cn> > Date:

Dear list, I will not use this account later, so i have to quit this list. I don't know how to quit this list, I search the official website and find no answer. thanks very much !! [[alternative HTML version deleted]]

Dear R Users, I would like to plot three time series on the same graph, two axis on the left and one axis on the right. The time series that I am graphing on the left do not share a similar scale: one has a range of 1:100 and the other a range of 25000:70000. How can I display the tick marks for both on the left hand side without superimposing them, i.e. one set of tick marks in black right

Hi, dear R experts . is there any package contain an universal EM procedure, that is , for arbitrary d.f. , not just the one in mclust . thanks in advance best regards ----------------------------------------------- Peng Jiang ?? ,Ph.D. Candidate Antai College of Economics & Management ???????? Department of Mathematics ??? Shanghai Jiaotong University (Minhang Campus) 800 Dongchuan Road

I truly get the bytecode file for each souce file,but can I use llvm-link to link them into a whole-program one automatically through some scripts? > > Message: 27 > Date: Tue, 15 Sep 2009 03:16:10 +0200 > From: ?scar Fuentes <ofv at wanadoo.es> > Subject: Re: [LLVMdev] Replace gcc with llvm-gcc??? > To: llvmdev at cs.uiuc.edu > Message-ID: <87vdjlnh2d.fsf at

Hi,all Recently I met a question when I want to replace gcc with llvm-gcc through configure script(command). For simply,described like that I typed as following 1.zhunan at sjtu:~/workplace/$ ./configure CC=llvm-gcc CFLAGS="-S -emit-llvm" configure will failed when it checks whether C compiler is working 2.zhunan at sjtu:~/workplace/$ ./configure CC=llvm-gcc CFLAGS="-c

Hi Martin: Actually, I have installed all the debuginfo for this coredump file. But the netcf debuginfo report "mismatch" as below: warning: the debug information found in "/usr/lib/debug/usr/lib64/libnetcf.so.1.4.0.debug" does not match "/lib64/libnetcf.so.1" (CRC mismatch). So I ignore this warning before. You can check what I did on the attachment

Sorry for forgetting to reply all... It works! Thank you very much! But I also wonder how do you know this function will work while there are no documents noticing that. I try learning LLVM by reading its code, but soon feel lost in so many functions. Just like I have many tools, but don't know which to use and what difference it could make. Is there some better ways to learn LLVM? On Wed,

Just set llvm-ld as the default ld . Such as LD = llvm-ld in makefile, if it's not working, then there is no solution 2009/9/15, zhunan <zhunansjtu at gmail.com>: > I truly get the bytecode file for each souce file,but can I use > llvm-link to link them into a whole-program one automatically through > some scripts? > > >> >> Message: 27 >> Date: Tue, 15

Hi, I am writing a loop pass to replace the backedge with an edge from latch to exit. Now I just replace the terminator of latch with another BranchInst, and the loop will not be a loop after my pass. However, it turns out a failure of loopverify after executing my pass: opt: ~/llvm/llvm-trunk/include/llvm/Analysis/LoopInfoImpl.h:297: void llvm::LoopBase<N, M>::verifyLoop() const [with

Laine, you are right, some packages mixed: [root@openstack3 ~]# rpm -qa | grep '\(libvirt\|netcf\|libnl\)' | sort libnl-1.1.4-3.el7.x86_64 libnl3-3.2.21-7.el6.x86_64 libnl3-cli-3.2.21-7.el6.x86_64 libnl3-debuginfo-3.2.21-7.el6.x86_64 libnl-debuginfo-1.1.4-3.el7.x86_64 libnl-devel-1.1.4-3.el7.x86_64 libvirt-client-1.1.1-29.el7_0.3.x86_64 libvirt-daemon-1.1.1-29.el7_0.3.x86_64

Dear Rdevelers, ? ? ?The following struct is in the Rinternals.h. I want to know ?the meanings of labels or names like "gp,mark,obj,named,trace....." . TKS! struct sxpinfo_struct { ? ? SEXPTYPE type ? ? ?: ?5;/* ==> (FUNSXP == 99) %% 2^5 == 3 == CLOSXP ? ? * -> warning: `type' is narrower than values ? ? * ? ? ? ? ? ? ?of its type ? ? * when SEXPTYPE was an enum

Dear expeRts, ?? I am fammilar with matlab , i want to call some r codes from it , what can i refer? ?I tried R.matlab. But it seems can't work well. so, do you have any other suggestions? -- PO SU mail: desolator88 at 163.com Majored in Statistics from SJTU

Dear expeRts, ?? i? use sapply for loop,?and i want to break it when i needed, how to do that?? e.g. sapply( 1:10, function(i) { if(i==5) break and jump out of the function sapply } ) I want to do it because i have to loop 1000000 times, but i don't know when it will break, that means, it may need break at i=5 or at i=50000, for the possible of the? last case, i don't use for loop,

On May 7, 2013, at 8:26 PM, zhiyuan yang <sjtu.yzy at gmail.com> wrote: > Hi, > > I am writing a loop pass to replace the backedge with an edge from latch to exit. > Now I just replace the terminator of latch with another BranchInst, and the loop will not be a loop after my pass. However, it turns out a failure of loopverify after executing my pass: > > opt: