similar to: Fitting function with if-clause (nls; e.g. heaviside)

Hallo! I have a problem with fitting data with nls. The first example with y1 (data frame df1) shows an error, the second works fine. Is there a possibility to get a fit (e.g. JMP can fit also data I can not manage to fit with R). Sometimes I also got an error singularity with starting parameters. # x-values x<-c(-1,5,8,11,13,15,16,17,18,19,21,22) # y1-values (first data set)

Hello, I am a Second year PhD student in Dept of Management and Organization from NUS Business School, Singapore. Presently I am doing a multilevel analysis for a small research project with my supervisor. While surfing the web, I found your website on multilevel analysis. These are very useful for the understanding of the concept to me. I was also trying to learn more by completing the lab

Dear List members, I am trying to produce some trellis graphics and to save them in a postscript file but I only get blank files. R behaviour is certainly strange because I use a loop to generate the graphics (see code below). When I change the loop variable myself the postscript graphics are OK. I am using R 1.9.1 (2004-06-21) on Debian GNU/Linux which I try to keep updated on a daily basis. I

hello list, when I use method lda of the MASS package I experience a warning: variables are collinear in: lda.default(data[train, ], classes[train]) Is there an easy way to recover from this issue within the MASS package? Or how can I tell how severe this issue is at all? I understand that I shouldn't use lda at all with collinear data and should use "quadratische" (squared?)

Dear all, I need to generate a list of lists as required by the bayesm-package. This means in my application that I have to generate a list which consists of 2000 elements, which are lists themselves: list(list(y1,X1),...,list(y2000,X2000)). The y are vectors and the X are matrices of different dimensions. I tried to solve this problem iteratively by the following code, but received an error

Hi, I downloaded RWeka successfully. (At least I do not see, where I could have made a mistake.) Then I tried to load it by the library-command. To my surprise this did not work. Result: library(RWeka) Fehler in .jinit(c(system.file("jar", "weka.jar", package = "RWeka"), system.file("jar", : Cannot create Java Virtual Machine Fehler: .onLoad in

Hey All, I was wondering if I could solicit a little advice. I have been experiencing some quirkiness in my C code through .Call. Unfortunately, my program is rather large, so I'm trying to create a brief example. Yet before I do, I thought maybe a conceptual question would be sufficient. Basically, I'm writing up a multidimensional Gaussian likelihood (with spatial covariances and

Hallo NG-Leser, ich denke mal, mir fehlt vielleicht einfach nur die Erfahrung, aber ich hab bisher _kein_ einziges Win-Programm unter Linux zum Laufen bekommen. Eigentlich m?chte ich nur einen IE 5.5 benutzen k?nnen, um zu sehen, ob meine unter Linux entwickelten Webpages auch im IE gut aussehen. (jeder Webmaster kennt ja die Probleme) Aber mit Wine ist da wohl nix zu machen, wie? Ist das

I ran into a problem installing R 3.5 on Ubuntu Bionic Beaver. In file /etc/apt/sources.list I added the repository entry "deb https://cloud.r-project.org/bin/linux/ubuntu bionic-cran35/". But "apt-get update" now produces an error message: W: Konflikt bei Distribution: https://cloud.r-project.org/bin/linux/ubuntu bionic-cran35/ InRelease (bionic-cran35/ erwartet, aber

I have been experimenting with convolve(). What I know about convolution I learned from engineering (they call this stuff linear systems theory), not statistics, so maybe this is all just a matter of different conventions. BUT I notice very weird things with convolve(). 1. First example, from the classic Bracewell The Fourier transform and its applications, chap 3 (p.32 in 2nd edition): {2 2 3 3

Hi all, currently I'm working with physical data stored in a data.frame. I have N observations, typically 100-300 per data set. Each row in a set holds M (typically 2100) variables which represent a curve. For linear discriminant analysis I chose first to do a wavelet transform (because M >> N) and then feed the transformed data (of level L) in lda. This works fine (e.g. error <

Hello everybody, first I would like to apologize my consulting request on this help list but I couldn't find any ressources about consulties on the net. In our company we are searching on alternatives to SPSS and after a very short test, R could satisfy our needs completly. Unfortunately we are not able to cover all required features, like a little more sophisticated tabularization, an

hi all, I've got to import CSV-datasets (with variable-names in the first line) into data.frames. each is about 12MB (or more!) with 1823 columns and about 500 rows. the first 22 columns are in "character"-mode, the rest is "numeric". I run R 1.4.1 on a Windows 2000 system. First I tried read.table() which works fine for a low number of cases (say, 40). with all cases

Hi, I tried some windows screensavers with Wine. Most screensavers start with the configuration screen without a possibility to start the main screensaver part. It's the same thing when I rename a screensaver file from 'somewhat.scr' to 'somewhat.exe' and try to run it with a doubleclick on my Windows 2000 PC. (*.scr: the screensaver starts, *.exe: the configuration screen

Dear UseRs, here is an example scenario presenting my problem: Multiplying a dsyMatrix with a numeric vector results in an error (unfortunately in German due to my locale): > (M1 <- Matrix( c( 1, 2, 2, 2, 1, 2, 2, 2, 1), nrow = 3)) 3 x 3 Matrix of class "dsyMatrix" [,1] [,2] [,3] [1,] 1 2 2 [2,] 2 1 2 [3,] 2 2 1 > M1 %*% 1:3 Fehler in x %*%

Hallo Herr Jahn, falls Sie eben Anrufe von uns bekommen haben und Sie nichts geh?rt haben - das liegt an Problemen, die wir momentan mit unserer Telefonanlage haben. Deswegen kurz per Mail: Ich habe die Pakete auf Datei-m2 installiert. Da wir mit dem Setup von den Samba-Servern ja zuletzt einige ?berraschungen erlebt hatten, w?rde ich vorschlagen, dass Sie den Server erstmal mit einem anderen

Hi, just tried 1.73-pre6 pxelinux: - booting linux works - memdisk with 1.44M Dos image works - the 'kbdmap'-parameter fails: [..] Unknown keyword in config file. Missing parameter in config file. boot: - and it doesn't remap any keys. I tried 1.66 with the same config file and it works, it accepts 'kbdmap' and also remaps the keys. Regards, Josef

I have this too on Ubuntu Bionic. The English error message is: W: Conflicting distribution: https://cran.rstudio.com/bin/linux/ubuntu bionic-cran35/ InRelease (expected bionic-cran35/ but got bionic) Though the error doesn't seem to prevent use of the repository. I could apt-get install R 3.5 no problem. On Wed, Jun 13, 2018 at 2:04 PM, Ulrich Leuchtmann < ulrich.leuchtmann at

Dear everyone, the following problem: Our group has written a lengthy program in c++, to which we would like to add some additional features. Because we are not sure if those features are actually useful, we would prefer to take a "quick and dirty" approach just to try them out. The additional feature is that in every iteration of the algorithm membership-probabilities should by

Thanks, but I am still having the same problem -- I made sure to reference the correct passwd file, but WinXP is still forcing me to logon as AGAMEMNON\Guest. Tim -----Original Message----- From: miles123@gmx.de [mailto:miles123@gmx.de] Sent: Monday, May 03, 2004 6:11 AM To: tbbooher@cox.net Subject: SOME Suggestions on [Samba] Can't the very basic stuff to work Hello Tim, I have read