search for: cobs

Dear R-Users, I have problems with the cobs library. When doing the cobs example, I get the folling error message: example(cobs) cobs> x <- seq(-1, 3, , 150) cobs> y <- (f.true <- pnorm(2 * x)) + rnorm(150)/10 cobs> con <- rbind(c(1, min(x), 0), c(-1, max(x), 1), c(0, 0, 0.5)) cobs> Rbs <- cobs(x, y, cons...

Hello, I tried to do a 'sem' analysis for data of how blueberry consumption by birds is influenced by a pollution gradient, using distance and vegetation structural and composition variables, but I got the following error message: Error in sem.default(ram = ram, S = S, N = N, param.names = pars, var.names = vars, : S must be a square triangular or symmetric matrix This may be very

Hello, I'm working on some dialplan rules to pull multiple users into a conference call. I have some fairly straightforward rules which start up a new MeetMe conference, allow escape with the * key to invite more users, then use a features.conf sequence to bring the new user into the conference with ChannelRedirect. The problem I'm running into is the time in the MeetMe conference

Hi all, I attempted to add an EL5.1 client to our puppet server (EL5), and after signing the client cert, got the error "Certificates were not trusted: hostname not match with the server certificate" I found the mailing list discussion and the relevant page: http://www.reductivelabs.com/trac/puppet/wiki/RubySSL-2007-006 As far as I can tell, my puppermaster''s cert CN matches

Hello, I have been trying to take the derivative of a quadratic B-spline obtained by using the COBS library. What I would like to do is similar to what one can do by using fit<-smooth.spline(cdf) xx<-seq(-10,10,.1) predict(fit, xx, deriv = 1) The goal is to fit the spline to data that is approximating a cumulative distribution function (e.g. in my example, cdf is a 2-column matrix with x...

I am having trouble using back ticks with the R extractor function 'predict' and an lm() model.? I'm trying too construct some nice vectors that can be used for plotting the two types of regression intervals.? I think it works with normal column heading names but it fails when I have "special" back-tick names.? Can anyone help with how I would reference these?? Short of

?s 17:38 de 30/11/2023, Robert Baer escreveu: > I am having trouble using back ticks with the R extractor function > 'predict' and an lm() model.? I'm trying too construct some nice vectors > that can be used for plotting the two types of regression intervals.? I > think it works with normal column heading names but it fails when I have > "special"

Hi everyone, I'm trying to print a table justified to the left, but it doesn't work. Any hints? KennArt <- data.frame(NR=c(171,172,174,175,176,177,181,411,980), TYP=c("K?rnermais", ?"Corn Cob Mix", "Zuckermais", "Mischanbau (Silo)Mais/Sonnenblumen", ?"Mais mit Bejagungsschneise in gutem landwirtschaftlichen und ?kologischen Zustand",

Hi all, I'm looking for smooth monotone estimation packages, preferably using splines. I downloaded the 'cobs' package and intend to use it, but since it offers only quadratic splines based on L1 minimization, I'd like to compare its performance to that of a more 'mainstream' cubic-spline, L2-norm minimizing spline. Preferably a smoothing spline. Does anyone know of such code existing anyw...

I have R installed on my computer and want to use the tm module. I selected a CRAN mirror then selected tm on the install package menu. This is the response I got: also installing the dependency ?slam? trying URL 'http://cran.mirrors.hoobly.com/bin/windows/contrib/2.11/slam_0.1-13.zip' Content type 'application/zip' length 41992 bytes (41 Kb) opened URL downloaded 41 Kb trying

Is there a painless way to find the names of all packages on CRAN that "Depend" on a specified package? url: www.econ.uiuc.edu/~roger Roger Koenker email rkoenker at uiuc.edu Department of Economics vox: 217-333-4558 University of Illinois fax: 217-244-6678 Champaign, IL 61820

Hello, I have a simple question but I don't know which method is best to use for my problem. I have the following strings: str1 <- "My_name_is_peter" str2 <- "what_is_your_surname_peter" I would like to apply predefined abbreviations for peter=p and name=n to both strings so that the new strings look like the followings: str1: "My_n_is_p" str2:

Hi, I am approximation a value function (in dynamic programming) V: R^n->R. In different versions of the problem, n is between 2 and 5. I would like to use splines to use this, I checked the mailing list and CRAN but couldn't find anything that would help me (Tps in fields is too slow, cobs would be really nice but seems to be one-dimensional). Is there any package that would at least give me the basis for multidimensional b-splines? Or even one that would do the fitting, perhaps even with constaints on derivatives at the edges (which I can specify from theory)? Thank you, Tamas...

Dear All, I'm hoping one of you can help me with the following R problem. I'm trying to refer to a member of a list by variable. However, this seems not to work: foo=list(first=c(1:10),second=c(11:20)) > foo$first [1] 1 2 3 4 5 6 7 8 9 10 > foo$"first" [1] 1 2 3 4 5 6 7 8 9 10 > goo=c("first") > foo$goo NULL > foo$goo[1] NULL

Hello everone,            Anyone who knows how to force a cubic smoothing spline to pass through a particular point?            I found on website  someone said that we can use "cobs package" to force the spline pass through certain points or impose shape           constraints (increasing, decreasing). However,  this package is using  B-spline and can only do linear and quadratic B-spline.            In my research, I need to force a cubic smoothing spline to pass a point....

Good afternoon, We are running callgrind and cg_annotate version 3.6.1 on Centos Linux Version 5.5 x86_32. One month ago Mr. Josef Weidenorfer issued a special patch that fixed callgrind on Centos Linux Version 5.5 x86_32. We can now profile complex C++ programs which use our own shared library libmdMatchup.so. However, when we use version 3.6.1 cg_annotate callgrind.out.22533 --auto = yes

? Buenas tardes, os pido ayuda sobre el siguiente tema. Tengo interes en mostrar informes con Sweave/Latex y para ello genero tablas con xtable. Sin embargo muestra la tabla al completo cuando lo que deseo es agrupar las celdas con el mismo dato para dar claridad a la tabla. La salida de xtable me genera: [image: Imágenes integradas 3] Para dar claridad lo he intentado con latex(tabular())

I seem to be having a problem, but I'm not sure if it's -stable, Squid, or neither. I've been running -stable+Squid on a Dell 4600 for a couple years now. All has been well, but after upgrading to Squid 2.5_3 (which was also done on a couple other, less-loaded, -stable machines without this issue to date), I occasionally get errors in my cache.log and this AM Squid died and required

...ince it should be calculating all of the necessary inputs prior to calculating Bt[i+2]. Any help would be greatly appreciated. Thanks #Model parameters B0<-75000000 m<-0.3 R0<-B0*m z<-0.8 a<-B0/R0*(1-(z-0.2)/(0.8*z)) b<-(z-0.2)/(0.8*z*R0) dat<-data.frame(years=seq(1983,2004),cobs=c(19032324,19032324,17531618,2 0533029,20298099,20793744,23519369,23131780,19922247,17274513,17034419,1 2448318,4551585,4226451,7183688,7407924,7538366,7336039,8869193,7902341, 6369089,6211886)) stdr<-runif(100,0,0.5) stdc<-runif(100,0,0.5) BC<-runif(1000,0,100) #model calibration calib...

...ince it should be calculating all of the necessary inputs prior to calculating Bt[i+2]. Any help would be greatly appreciated. Thanks #Model parameters B0<-75000000 m<-0.3 R0<-B0*m z<-0.8 a<-B0/R0*(1-(z-0.2)/(0.8*z)) b<-(z-0.2)/(0.8*z*R0) dat<-data.frame(years=seq(1983,2004),cobs=c(19032324,19032324,17531618,2 0533029,20298099,20793744,23519369,23131780,19922247,17274513,17034419,1 2448318,4551585,4226451,7183688,7407924,7538366,7336039,8869193,7902341, 6369089,6211886)) stdr<-runif(100,0,0.5) stdc<-runif(100,0,0.5) BC<-runif(1000,0,100) #model calibration calib...