similar to: DUD (Does not Use Derivatives) for nonlinear regression in R?

SAS has DUD (Does not Use Derivatives)/Secant Method for nonlinear regression, does R offer this option for nonlinear regression? I have read the helpfile for nls() and could not find such option, any suggestion? Thanks, Derek [[alternative HTML version deleted]]

> Date: Tue, 2 Apr 2013 06:59:13 -0500 > From: Paul Johnson <pauljohn32 at gmail.com> > To: qi A <send2aqi at gmail.com> > Cc: R-help <r-help at r-project.org> > Subject: Re: [R] DUD (Does not Use Derivatives) for nonlinear > regression in R? > Message-ID: > <CAErODj_1pK8raHyAme_2Wt5zQZ_HqOhRjQ62bChhkORWbW=o2A at mail.gmail.com> > Content-Type:

Could someone help me on the following: SAS has DUD (Does not Use Derivatives) for nonlinear regression. Does "R" has a similar capability? I am not good at derivatives and may get my derivative wrong before feeding it to a nonlinear regression procedure. Any help would be much appreciated. Liu Hancock Forest Management NZ Tokoroa, New Zealand DDI: 07-8850387 Mobile: 021-1576178

Hi, I am new to R, and as a first exercise, I decided to try to implement an XIRR function using the secant method. I did a quick search and saw another posting that used the Bisection method but wanted to see if it was possible using the secant method. I would input a Cash Flow and Date vector as well as an initial guess. I hardcoded today's initial date so I could do checks in Excel.

On 10/2/19 9:47 PM, Jonathan Billings wrote: > On Oct 2, 2019, at 3:39 PM, Ljubomir Ljubojevic <centos at plnet.rs> wrote: >> Richard on CentOS-devel mailing list has similar problem but suggests it >> might be issue only with CentOS, he says he had to add the kernel line >> to make it work. >> Name of the tread is: >> [CentOS-devel] Booting CentOS 8 in a VM

Hi, I am Ken.. I am trying to add dud(driver update disk) to centos5.6 using network method, I can successfully add dud to centos5.6 using http and ftp method, but fail when using nfs method. However those all three methods are officially supported in the centos5.6. As indicated in the centos5.6 website, we can see they not only support http, ftp, but also nfs.

Hi all, I am writing a simple function to implement regularfalsi (secant) method. ################################################### regulafalsi=function(f,x0,x1){ x=c() x[1]=x1 i=1 while ( f(x[i])!=0 ) { i=i+1 if (i==2) { x[2]=x[1]-f(x[1])*(x[1]-x0)/(f(x[1])-f(x0)) } else { x[i]=x[i-1]-f(x[i-1])*(x[i-1]-x[i-2])/(f(x[i-1])-f(x[i-2])) } } x[i] }

Hi R-help! I'm trying to understand how R's nlm function updates its estimate of the Hessian matrix. The Dennis/Schnabel book cited in the references presents a number of different ways to do this, and seems to conclude that the positive-definite secant method (BFGS) works best in practice (p201). However, when I run my code through the optim function with the method as "BFGS",

Hi all, Some (then all) of our workstations were complaining about incorrect ACLs on GPOs and were unable to read the gpt.ini to apply the GPOs. So I did a sysvolcheck and sure enough I'd lost the ACLs when I moved our sysvol share to a new location on the server (whoops, mea culpa). I ran a sysvolreset which took a long time to return (some 5 minutes, please see my post on slow winbind

On 2019-12-02 10:00, Fabian Arrotin wrote: > On 02/12/2019 12:42, Alexandre Leonenko wrote: >> Hey guys, >> >> I'm stumped in how to add the kmod rpm to pxe install. I need it to be installed but also loaded during the install as well. >> The rpm in question is the 3w-9xxx from elrepo

On Wed, Oct 2, 2019 at 4:10 PM Akemi Yagi <amyagi at gmail.com> wrote: > > On Wed, Oct 2, 2019 at 3:35 PM G?nther J. Niederwimmer <gjn at gjn.priv.at> wrote: > > > > > This Board have 2 Controller!? > > 00:1f.2 RAID bus controller: Intel Corporation C600/X79 series chipset SATA > > RAID Controller (rev 06) > > > > On this controller all

I need to calcuate the cumulative probability for the Natural Exponential Family - Hyperbolic secant distribution with a parameter theta between -pi/2 and pi/2. The integration should be between 0 and 1 as it is a probability. The function "integrate" works fine when the absolute value of theta is not too large. That is, the NEF-HS distribution is not too skewed. However, once the

If there is a helpfile open (f.e ?glm) and it is the top window, then an exception error occurs (closing RGUI) when I hit the open file button. If the helpfile is not the top window (of the RGUI) I am able to open a new script without any error. The RGUI is not closing complete there is a blank screen left which I have to close with the X Button or Taskmanager Windows XP Home - German Version

Dear all, One of the functions that I wrote (ggsave.latex) extents the functionality of a function (ggsave) in another package (ggplot2). Instead of copying all the information I would like to create a link in the helpfile of ggsave.latex to the helpfile of ggsave. I tried \code{\link{ggsave}} and \code{\link{ggplot2::ggsave}}, but neither worked. Both cases gave a 'missing link' warning.

On Thu, Oct 10, 2019 at 9:04 AM Nux! <nux at li.nux.ro> wrote: > There was a recent thread about Redhat's removal of drivers from LSI > SAS2, it's probably the problem you are facing. > It can be worked around with the help of Elrepo repo. > > > https://lists.centos.org/pipermail/centos/2019-October/173682.html > > >

Hi, I just received in the mail my TDM04B card and put it in the computer, now the computer won't even show the video card bios or the post screen. From the digium website I could not find any specific requirements for the pci card, like 32 or 64 bit slot. The motherboard for the computer I put it in is an Asus A7V333 with PCI 2.2 compliant slots. I am thinking that maybe I just got a dud

I would propose to add " See also: `nchar' for counting the number of character in character vectors. " to the helpfile of length(), because it is rather difficult to find nchar() if one has only search terms as "length", "len", "strlen" in mind. Sincerly Wolfram Fischer

Hi All, I went and bought a new headset, as I thought the old one,(almost 5yrs old), was no good. But, when trying to skype, I still can't be heard. I know the sound card worked before, although, it has been some time, since I mic'd anything. Anyone got any ideas, other than a possible dud sound card(socket)? Cheers. Mark Sargent.

Hi I'm having problems getting the "factorized" argument in solve.QP (part of the quadprog library) to work as expected. The helpfile states that when the factorized argument is set to TRUE, then the function requires the inverse of a square-root factor of the Hessian instead of the Hessian itself. That is, when factorized=TRUE, the Dmat argument should be a matrix R^(-1), such

What's the current wisdom on sync of sysvol to other (samba) DC's? [I should probably search, but I don't recall seeing discussion on sysvol sync details hit the list recently.] A quick search dud turn up this wiki article - is that current best-practice? https://wiki.samba.org/index.php/Rsync_based_SysVol_replication_workaround I'm running the Ubuntu 18.04 packaged Samba