similar to: Help with NLME

Hello. I am trying to understand the syntax of the nonlinear least squares function (nls) when the function definition is made outside of the call. Here is the context. 1. If I specify the following command, it works fine: > fit2<-nls( + A~Am*(1-exp(-alpha*(I-LCP))),data=dat1, + start=list(Am=3.6,alpha=0.01,LCP=20)) 2. Now, I want to be able to specify the function definition

Hello all. I'm doing a simulation study where I will be making use of the 'nlme' package. I want to loosen up the convergence criteria so that I increase the likelihood of convergence (potentially at the cost of obtaining slightly less than ideal results). The parameters in the function nlmeControl() control the convergence criteria. These default values can be modified to make

Hello, I was relying on withTimeout (from R.utils) to help me stop nlme when it ?hangs?. However, recently this stopped working. I am pasting a reproducible example below: withTimeout should stop nlme after 10 seconds but in this example it does not. I tried this both on a linux (64 bit, CentOS 7, R 3.4.1, nlme 3.1-131 R.util 2.6) and mac (Sierra 10.13.1, R 3.4.2, same versions or nlme and

I have a problem with nlme on Windows 2000, and I'm having a devil of a time determining whether the problem is with my computer or with something in R. I'm running v1.8.1 on a Dell Pentium III with 512MB of RAM and all of the recommended Windows 2000 updates applied. If I use Rterm, I can run analyses with NLME to my heart's content. But when I run Rgui, I encounter a floating

Hello, I was relying on withTimeout (from R.utils) to help me stop nlme when it ?hangs?. However, recently this stopped working. I am pasting a reproducible example below: withTimeout should stop nlme after 10 seconds but the code will generate data for which nlme does not converge (or takes too long) and withTimeout does not stop it. I tried this both on a linux (64 bit, CentOS 7, R 3.4.1,

Dear R users, I am using nlme to fit a pharmacokinetic model. The base model is parameterized in terms of CL, V1, V2 and Q. basemodel<-nlme(Conc ~TwoCompModel(CL,Q,V1,V2,Time,ID), data = data2, fixed=list(CL+Q+V1+V2~1), random = pdDiag(CL+V1+V2~1), start=c(CL=log(20),Q=log(252),V1=log(24.9),V2=log(120)), control=list(returnObject=TRUE,msVerbose=TRUE, msMaxIter=20,pnlsMaxIter=20,pnlsTol=1),

Last week (Wed 9/10/2003, "regression questions") I posted a question regarding the use of gnls( ) and its dissimilarity to the syntax that nls( ) will accept. No one replied, so I partly answered my own question by constructing indicator variables for use in gnls( ). The code I used to construct the indicators is at the end of this email. I do have a nagging, unanswered

Hi. I was wondering if anyone might have some suggestions about how I can overcome a problem of "iteration limit reached without convergence" when fitting a mixed effects model. In this study: Outcome is a measure of heart action Age is continuous (in weeks) Gender is Male or Female (0 or 1) Genotype is Wild type or knockout (0 or 1) Animal is the Animal ID as a factor

I downloaded R v2.1.1 earlier this morning to compile under Fedora Core 4. It compiled without incident, but 'make check' failed. Below is the relevant part of its report. Is this a known problem? I used a locally compiled version of GCC v4.0.0 that reports [kent at d89h102 R-2.1.1]$ gcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: ../gcc-4.0.0/configure

I downloaded R v2.1.1 earlier this morning to compile under Fedora Core 4. It compiled without incident, but 'make check' failed. Below is the relevant part of its report. Is this a known problem? I used a locally compiled version of GCC v4.0.0 that reports [kent at d89h102 R-2.1.1]$ gcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: ../gcc-4.0.0/configure

Blame guus. -- Rob 'robster' Bradford Chief Editor/Lead developer DebianPlanet.org -------------- next part -------------- Sep 1 10:24:02 zeus syslogd 1.4.1#2: restart. Sep 1 10:24:17 zeus pppd[326]: rcvd [LCP EchoRep id=0x92 magic=0x9936a81f] Sep 1 10:24:47 zeus pppd[326]: sent [LCP EchoReq id=0x93 magic=0x48b43815] Sep 1 10:24:47 zeus pppd[326]: rcvd [LCP EchoRep id=0x93

I'm having a trouble. I use winXP to connect through L2TP/IPsec to one Linux server. When I try to connect in my domain appear an error at log. Plugin winbind.so loaded. WINBIND plugin initialized. using channel 36 Using interface ppp1 Connect: ppp1 <--> /dev/pts/3 sent [LCP ConfReq id=0x1 <mru 1410> <asyncmap 0x0> <auth chap MD5> <magic 0x564e3dc9>

I am getting an error message in a call to nlme and cannot understand what is happening. I explain the steps below in the hope that someone can explain the error and how to correct it. STEP 1: Data set: name: marouane.data. This is a data frame whose first few lines are as follows: > marouane.data[1:13,] species plant leaf irradiance photosynthesis chlorophyll 1

Hi all, I read the setup at http://www.blackh0le.net/articles/vpn-dun-howto.html to setup my VPN. However, I'm having a problem which I think is proxy-ARP not working. I like to ask you to see if you know what's going on. When I ping 10.77.1.1 from windows XP machine the packets get to the 10.77.1.1 machine, but they don't have a return path to get back. When I do ping the windows

I'm wondering if I'm seeing a regression of 5616 with 3.4.8. I'm trying to set-up pptpd with winbind, which I'm doing on two machines on Debian lenny, and I'm trying on Debian Squeeze now. The Windows client is saying "Error 778: It was not possible to verify the identity of the server." The logs say that everything is ok, and that the client is hanging up the

[R-0.50-a3] It seems intuitive that attach( .., pos = 1) is harder than other attach()es. But still... If it ever will work, it is even more important to have detach( .... , save = "VAR.name") ~~~~~~~ -------- to be working. The documentation says that detach(.) returns invisibly. Therefore, we don't NEED the above 'save = ' argument to detach, since we can

Hello. I have a script in which I repeatedly fit a nonlinear regression to a series of data sets using nls and the port algorithm from within a loop. The general structure of the loop is: for(i in 1:n){ … extract relevant vectors of dependent and independent variables … … estimate starting values for Amax and Q.LCP…

Hello. I am trying to fit a nonlinear mixed model involving 3 parameters. I have successfully made a self-starting function. getInitial() correctly outputs the initial estimates. I can also use the nlsList with this function to get the separate nonlinear fits by group. However, I get an error message when using the nlme function. Here is the relevent code:

hello everyone, i am setting up my computer and want to establish internet connection over ADSL. For this i have to use pptp. The annoying thing is, that doing 'pptp 10.0.0.138' i get a connection only every second time. Perhaps it is a problem, that i cannot stop pptp but killing it, and therefore pppd has to clean up? i am using pppd 2.4.3 and pptp 1.5.0 Thanks in advance

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-06:08.ppp Security Advisory The FreeBSD Project Topic: Buffer overflow in sppp(4) Category: core Module: sys_net Announced: 2006-08-23