similar to: Weighted regresion using lm

Displaying 20 results from an estimated 2000 matches similar to: "Weighted regresion using lm"

2004 Oct 04
1
Using model operator in stepwise function's upper scope formula
Hello: I am doing forward stepwise analysis on the glm model. I am trying to use model operator in the "upper" scope formula, for example, scope=list(lower=~1,upper=~ .^2) but the upper bound of the scope seems to be ignored and add1 is not performed at all, while if the terms are explicitly listed in the formula, the step function seems to work
2005 Jan 26
2
Source code for "extractAIC"?
Dear R users: I am looking for the source code for the R function extractAIC. Type the function name doesn't help: > extractAIC function (fit, scale, k = 2, ...) UseMethod("extractAIC") <environment: namespace:stats> And when I search it in the R source code, the best I can find is in (R source root)/library/stats/R/add.R: extractAIC <- function(fit, scale, k = 2,
2006 Apr 21
1
Linker problem in installing 64-bit R
Hi, I am trying to compile R-2.2.1 on Solaris 2.9 with a 64-bit build. Following the instructions in "R Installation and Adminstration", I changed the following settings in "config.site": CC="gcc -m64" F77="g77 -64" CXX="g++ -m64" LDFLAGS="-L/usr/local/lib/sparcv9 -L/usr/local/lib" But I got the following error messages:
2006 Jun 04
2
slanted ends of horizontal lines for certain line widths
Hello, if I plot a horizontal line, e.g., plot(c(1,2),c(1,1),xlim=c(0,3),lwd=2,type="l") or plot(c(1,2),c(1,1),xlim=c(0,3),lwd=4,type="l") then the left end (1st example) or both ends (2nd example) of the lines are not rectangular but slanted on the graphical display (screen). That behavour first occurred when I was trying to plot a stepfun, e.g., y <-
2005 Feb 23
1
Graphics devices file[name] argument
Just got trapped by inconsistency of name of first argument for file-based graphics devices. Both 'file' and 'filename' are currently in use depending on the device. I ran on a machine without PNG support which my code used postscript as the backup device and choked here. > do.call(device, list(filename = pathname, height = height,
2005 Dec 08
1
Loading namespaces
I'm creating a package for my own use that uses some S4 classes but no methods. I have a file called NAMESPACE it contains the line: exportClasses("foo") and at the top of the R file I have setClass("foo", representation(x="numeric") and the line: .onLoad<-function(libname,pkgname) When I run R CMD check I get Syntax error in the only R file. If I
2004 Sep 21
2
png problem
Dear R-users, I have a small problem with the function png(), when used with the argument colortype="pseudo.cube". > png("toto.png", colortype="pseudo.cube") > image(matrix(rnorm(10000), 100, 100)) > dev.off() R is blocked at the last command (R does not print any prompt after the last command). Nothing is written in the file (Gimp indicates that the
2004 Dec 31
4
install.packages() for local source file
Wish to install a local source package on Un*x platform from within R. Same thing as I can accomplish from cmdline as $ export R_LIBS=~/R/library $ cd /path/to/pkg $ R CMD INSTALL -l $R_LIBS <pkgname> So, how do you go about this anyway? And isn't this a bug in 'install.packages'? ------- $ R R : Copyright 2004, The R Foundation for Statistical Computing Version 1.9.0
2005 Oct 27
1
Puzzled over curve() syntax.
It's probably toadally elementary (and, like, duhhhhh) but I can't figure out why the following doesn't work: curve(function(x){qnorm(x,4,25)},from=0,to=1) I get the error: Error in xy.coords(x, y, xlabel, ylabel, log) : 'x' and 'y' lengths differ But if I do foo <- function(x){qnorm(x,4,25)} curve(foo,from=0,to=1) it goes like a train. Also
2010 May 07
1
Problems 'make'ing on Solaris 9.
Hi list! I'm trying to build Samba 3.4.7 with ADS support on Solaris 9 and experiencing a heap of problems (which seem to be common). First of my system: Solaris 9 SPARC > uname -a SunOS sunfire2 5.9 Generic_122300-08 sun4u sparc SUNW,Sun-Fire-V240 Solaris Using GCC 3.4.6 from sunfreeware (with all noted dependancies installed) > gcc --version gcc (GCC) 3.4.6 Copyright (C) 2006 Free
2005 Oct 19
1
can't start csh (scripts) (PR#8220)
Dear R developers, after upgrading from R 2.1.1 to 2.2.0 I can't start csh (scripts) anymore. While the following commands work fine > system("tcsh -c pwd") /hom1/users/gloeckler > system("bash -c pwd") /hom1/users/gloeckler > system("ksh -c pwd") /hom1/users/gloeckler csh (in contrast to the shells used above) doesn't give any result:
2003 Sep 03
1
Last line in .Rprofile must have newline (PR#4056)
Full_Name: Henrik Bengtsson Version: R v1.7.1 OS: WinXP Pro, Solaris 9 Submission from: (NULL) (130.235.2.229) A colleague of mine who is new to R had problems setting up his .Rprofile and we tracked it down to the following. On both WinXP and Solaris with Rv1.7.1 we noticed that the *last* line in .Rprofile has to have a *newline* to be evaluated. For instance, starting R with the following
2006 Apr 27
1
Symbol __f95_sign not found.
Our computing services people have recently reconfigured the Sun compilers structure on our network, and I can no longer install, on our Sun/Solaris machine, a certain package (spatstat) with which I am heavily involved. (The same problem may well pertain to other packages as well; I haven't yet experimented except with spatstat.) Strictly speaking I can ***install*** it, but when I try to
2004 Feb 10
1
make check in 1.8.1.
I just (finally!!!) got R version 1.8.1 to configure and build under Solaris 9 (after much travail; there were funnies in my environment variables that mucked things up, but that's another story). Anyhow, when I ran ``make check'' I got an error right toward the end. Looking in the directory ``tests'' I found that the error was associated with the file reg-tests-3.R, and the
2002 Sep 10
2
Readline problem.
This question relates, at least vaguely, to recent postings from me concerning my attempts to build R-1.5.1 under Solaris 2.7. I've more or less given up on this, and I and a colleague are attempting to build R-1.5.1 on another machine in our Department, and are getting a ***different*** problem. Version details: platform sparc-sun-solaris2.9 arch sparc os solaris2.9
2002 Sep 10
2
Readline problem.
This question relates, at least vaguely, to recent postings from me concerning my attempts to build R-1.5.1 under Solaris 2.7. I've more or less given up on this, and I and a colleague are attempting to build R-1.5.1 on another machine in our Department, and are getting a ***different*** problem. Version details: platform sparc-sun-solaris2.9 arch sparc os solaris2.9
2004 Sep 15
1
Cross-validation for Linear Discrimitant Analysis
Hello: I am new to R and statistics and I have two questions. First I need help to interpret the cross-validation result from the R linear discriminant analysis function "lda". I did the following: lda (group ~ Var1 + Var2, CV=T) where "CV=T" tells the lda to do cross-validation. The output of lda are the posterior probabilities among other things, but I can't find an
2003 Mar 17
1
Error in making R-1.6.2.
I have just tried to update the version of R on our system, and when I did ``make'', I got the following error message: ===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+===+=== gcc -I. -I../../src/include -I../../src/include -DHAVE_CONFIG_H -g -O2 -c platform.c -o platform.o In file included from /usr/include/netinet/in.h:41, from
2003 Jul 01
2
Computations slow in spite of large amounts of RAM.
Hi all, I am a beginner trying to use R to work with large amounts of oceanographic data, and I find that computations can be VERY slow. In particular, computational speed seems to depend strongly on the number and size of the objects that are loaded (when R starts up). The same computations are significantly faster when all but the essential objects are removed. I am running R on a machine
2004 May 21
1
compiling R 64-bit with gcc on Solaris 9
Hi folks, I am trying to compile R as a 64bit app using gcc on Solaris 9 and get the following error from the configure script when passing the script CFLAGS='-mcpu=v9 -m64': checking how to get verbose linking output from g77... -v checking for Fortran libraries of g77... -L/usr/ccs/lib -L/usr/lib -L/usr/local/lib -L/usr/local/lib/gcc-lib/sparc-sun-solaris2.9/3.3 -L/usr/ccs/bin