similar to: Optim (fct): Parameters=LowerBounds

Hello, This is a little off-topic. I have an Ericsson FCT f251m, according to the specs it supports call signalling through polarity reversals and loop break, but it's currently disabled. On my PSTN line, my TelCo does send polarity switchs to signal answer and hangup (answeronpolarityswitch=yes and hanguponpolarityswitch=yes in zapata.conf), and asterisk detects it alright. I've been

Hi, We use a lot of "hash" in our program and we want to add a new function to the class, does someone know how to do this???? Thanks you very much Saiho The mind is its own place, and in itself. Can make a Heaven of Hell, a Hell of Heaven. http://www.geocities.com/sayoyo/ __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best

Dear list, I'm trying to fit a chapman-richards equation to my data, only I cannot interpret the parameters a, b and d. I know that the parameter b denotes the asymptote, but for the others I couldn't figure out. But I do need to know this in order to set my starting values. Here's the model: modPoplar<- nls(Diameter ~ d*(1-exp(-b *Age))^a ,start=list(a=20,b=0.9,d=33)) I attached

Hi, I wanted to use R's lbfgsb method for minimization from C. Unfortunately, my toy examples always crashes (segmentation fault). What's wrong with it? double eval(int n, double* par, void *ex) { double result = 0; for (int i=0; i<n; ++i) { result += par[i]*par[i]; } printf("result=%.2f\n", result); return result; } void grad(int n, double *par, double *gr,

Your results below make it look like a bug in optim(): it is not duplicating a value when it should, so changes to x affect xx as well. Duncan Murdoch On 03/05/2019 4:41 a.m., Serguei Sokol wrote: > On 03/05/2019 10:31, Serguei Sokol wrote: >> On 02/05/2019 21:35, Florian Gerber wrote: >>> Dear all, >>> >>> when using optim() for a function that uses the

On our tests using asterisk, some calls have been terminated abruptely with exact 185 seconds. This is happening with all our incoming calls from a trunk from 1 of my DID providers ( other providers or trunks are fine) and I could reproduce it by calling a queue from my Wengophone Softphone and letting the MoH play for 185 secs. If I make the same call from my WRTP54G on the same place,

It looks as though this happens when calculating numerical gradients: x is reduced by eps, and fn is called; then x is increased by eps, and fn is called again. No check is made that x has other references after the first call to fn. I'll put together a patch if nobody else gets there first... Duncan Murdoch On 03/05/2019 7:13 a.m., peter dalgaard wrote: > Yes, I think you are

On 03/05/2019 10:31, Serguei Sokol wrote: > On 02/05/2019 21:35, Florian Gerber wrote: >> Dear all, >> >> when using optim() for a function that uses the parent environment, I >> see the following unexpected behavior: >> >> makeFn <- function(){ >> ???? xx <- ret <- NA >> ???? fn <- function(x){ >> ??????? if(!is.na(xx)

Hi, I've got two H.323 Client connected to Asterisk, when one of them requests boeing connected to the other I use CALL application and both get in touch trhough asterisk, but using Call Asterisk stays on the middle and the sound quality gets poor. Is there any way to 'transfer' the call so Asterisk doesn't stay in the middle ?? I use OpenH323GK (www.gnugk.org

hi, i'm just look trhough the todo file, but it's rather large. i assume only a small part of it will be finished for 1.0. what is the schedule for 1.0? what kind of features will be included in 1.0? what is in 1.1 etc.. it'd be useful to see in the todo file that what features scheduled for which version. yours. -- Levente "Si vis pacem para

Dear All, I am trying to solve the optimization problem below, but I am always getting the following error: Error in optim(rep(20, nvar), f, gr, method = "L-BFGS-B", lower = rep(0, : L-BFGS-B needs finite values of 'fn' Any ideas? Thanks in advance, Paul ----------------------------------------------- k <- 10000 b <- 0.3 f <- function(x) { n <- length(x)

Hi! I have been learning rails for a couple of week now. Mostly i''ve worked on a authorize/roles system and now i go to the point that i want to separate it from en rest of my application to share it with others and to use it in other projects. It is a quite simple system that i implement using before_filter. My vision is to separate the authorize methods and even some basic

It is working very good :) Thank You. I only need to write Interface etho in maclist file. My MAC addresses don''t neet the ~ in front of. Thanks ! Maciek -- ---- Oferta jakiej jeszcze nie by³o! Serwer www 60 MB za 99 z³ rocznie Szczegó³y: www.oferta.alpha.pl ----

Mandi! L.P.H. van Belle via samba In chel di` si favelave... > > What I did, was to implement the smb.conf I got from Rowland. As I do > > not want *any* Samba users logging on with ssh, the template > > homedir = /dev/null, and template shell = /bin/nologin. > The other option is, setup a group in windows give it a GID and put the group in ssh. I suggest this option,

Hi Remko, thanks for your answer. but i do not really understand how to use the commands. if i want to use thigmophobe.labels(x,y,) do i need to identify the xy coordinates for each point first and then manually move every point? and if i neet to do so how to use the identify() function? or is there any possibility to automatically place the labels in the best position? >MatArab <-

Hello all, After many time reading a lot of stuff I am quite confident using LARTC to route my trafic. I am still working on QoS (by package type and so on) but it will stay in my studing class for a long time... ;) So lets go to my question... I mounted a router that makes my conections throug 2 external interfaces. Its working fine and my default gateway for entire network behind

That's consistent/not surprising if the problem lies in the numerical gradient calculation step ... On 2019-05-06 10:06 a.m., Ravi Varadhan wrote: > Optim's Nelder-Mead works correctly for this example. > > >> optim(par=10, fn=fn, method="Nelder-Mead") > x=10, ret=100.02 (memory) > x=11, ret=121 (calculate) > x=9, ret=81 (calculate) > x=8, ret=64

Yes, I think you are right. I was at first confused by the fact that after the optim() call, > environment(fn)$xx [1] 10 > environment(fn)$ret [1] 100.02 so not 9.999, but this could come from x being assigned the final value without calling fn. -pd > On 3 May 2019, at 11:58 , Duncan Murdoch <murdoch.duncan at gmail.com> wrote: > > Your results below make it look like a

Can anyone help me with lbfgsb (function for optimization)? It takes the following parameters: void lbfgsb (int n, int lmm, double *x, double *lower, double *upper, int *nbd, double *Fmin, optimfn fn, optimgr gr, int *fail, void *ex, double factr, double pgtol, int *fncount, int *grcount, int maxit, char *msg, int trace, int nREPORT); What do I put for parameter ex (11th parameter)? I looked at

It seems that it's an old bug that was found in some other packages, but at that time not optim: https://bugs.r-project.org/bugzilla/show_bug.cgi?id=15958 and that Duncan Murdoch posted a patch already last Friday :) Thomas Am 06.05.2019 um 16:40 schrieb Ben Bolker: > That's consistent/not surprising if the problem lies in the numerical > gradient calculation step ... >