similar to: Package to make stepwise model selection using F or Chisq test

Dear useR's, I wanted to load the package GeoXP in my computer but I couldn't because this warning message appeared: > require(GeoXp) Carregando pacotes exigidos: GeoXp Carregando pacotes exigidos: tcltk Loading Tcl/Tk interface ... Erro em fun(...) : couldn't connect to display ":0" Al?m disso: Warning message: pacote 'GeoXp' foi compilado na vers?o do R 2.4.1

Hi, I'm trying to plot a map with the location of the stations that I am using require(MASS)require(maps) mapaBrasil <- read.table("BASE_BR.txt",sep="") latlonRS <- read.csv2("coordenadas.txt",h=F,sep="") png(filename="mapa_grupos.png",width=600,height=800) # criating a map for RSmap(xlim=c(-80,-35),ylim=c(-45,10),

Full_Name: Finn Knudsen Version: 1.8.0 OS: windows 2000 Submission from: (NULL) (194.192.22.33) The problem seems to happen when running the GLM. When both multiplicative effects and an offset is present. I experienced this problem on my own dataset when using af Poisson familiy with log link function but the behaviour can be reproduced with the following code. I do not know if it is a bug, but

A querent on StackOverflow asked about the with() function http://stackoverflow.com/questions/42283479/why-when-to-use-with-function#42283479 and asked about the example in ?with library(MASS) with(anorexia, { anorex.1 <- glm(Postwt ~ Prewt + Treat + offset(Prewt), family = gaussian) summary(anorex.1) }) which saves little or no typing

Hello, I'm a starting user of R. I have installed R 1.9.1 and winedt 5.4 If I run the example from written with winedt. The summary command does not produce any output. It does when I repeat the command manualy in R. Can someone explain me what can be the problem? library(MASS) data(anorexia) anorex.1 <- glm(Postwt ~ Prewt + Treat + offset(Prewt), family =

Dear Listers, I got this message when compiling a package: * creating pgirmess-manual.tex ... OK * checking pgirmess-manual.text ... ERROR LaTex errors when creating DVI version. This typically indicates Rd problems. The message is quite explicit but I struggled a lot before understanding that the trouble comes from a single file "selMod.rd" among 44 topics. Even though I have

With new "strict" settings in R-devel, the following glm() example > data(anorexia, package = "MASS") > fm <- glm(Postwt ~ Prewt + Treat + offset(Prewt), family = gaussian, data = anorexia) > methods(class = class(fm)) Warning in grep(name, row.names(info)) : argument 'pattern' has length > 1 and only the first element will be used Warning in

I think this would be a good change. I think most users use the 'methods(class = <...>)' function to answer the question, "what methods can I call on objects with these classes?", and in that context I think it would be sensible for the function to accept more than one class. Kevin On Wed, Oct 17, 2018 at 7:15 AM Martin Maechler <maechler at stat.math.ethz.ch>

Dear all, I am fitting a GLM similar to library(MASS) anorex.1 <- glm(Treat~Postwt+Prewt,family = binomial, data = anorexia) I have found two ways of computing the p-value of the fitted model: pval1 <- 1-pchisq(anorex.1$deviance,anorex.1$df.residual) pval2 <- 1-pchisq(anorex.1$null.deviance - anorex.1$deviance, anorex.1$df.null - anorex.1$df.residual) pval2 is

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

Dear listers, I was used to package pgirmess under Windows with everything OK, but, for the first time, I had a trial this afternoon on Ubuntu 7.10 gutsy (I have a double boot computer and work more and more under unix) and R 2.7.0. Everything went OK except this: sudo R CMD check pgirmess ..... * checking examples ... ERROR Running examples in 'pgirmess-Ex.R' failed. The error most

Hi all, I installed SerNet samba packages on a Ubuntu 12.04.3 server and provisioned samba with dns-backend=BIND9_DLZ, but when I start bind it throws "samba_dlz: ldb: Unable to find backend for '/var/lib/samba/private/dns/sam.ldb' - do you need to set LDB_MODULES_PATH?" on syslog. I tried to install ldb-tools, but it conflicts with samba: root at dc01:~# aptitude install

Dear all, After running a glm, I use the summary ( ) function to extract its coefficients and related statistics for further use. Unfortunately, the screen only displays a small (last) part of the results. I tried to overcome the problem by creating/saving an object "coef" for coefficients of the model and export/save it e.g. as a cvs document. While I succed with this operatiion, I do

Hi all, i have a problem i have this topology 192.168.1.7 GW 192.168.2.252 link 1 ------------------------------------ link 2 | | eth1 PROXY eth0 192.168.1.245 192.168.2.245 The default gw of the PROXY is 192.168.1.7 and the link2 is a Secondary link that i need to go out to internet!!!! My internal IP of the network is

Hello all, I am trying to configure a linux box to make some QoS into my netowork and, at the same box, control my clients bandwidth. I have this classes created: ---------------------------------------------------------------- UP="eth0" # wan infocontabil DL01="eth2" # lan clientes $TC qdisc del dev $DL01 root 2> /dev/null >

Hi all, I am using RODB to export multiple data.frames into one excel file with multiple sheets. One thing I can't seem to unserdatand is way the command adds the character: ' To the beginning of each of my (non numeric) values. Here is an example code: library(RODBC) library(MASS) data(anorexia) save2excel <- function(x, t.name) sqlSave(xlsFile, x, tablename = t.name, rownames =

Dear Mr. Beginning to work on Linux. I am trying to install R into Ubuntu Gustsy. I installed version 2.5.1 and worked fine. But then I tried to upgrade by adding these lines to sources.list: deb http://cran.fiocruz.br/bin/linux/debian etch-cran/ deb http://cran.fiocruz.br/bin/linux/ubuntu gutsy/ I introduced the authorization keys (as recommended) and the files were downloaded. But then I

Dear all, I have installed 1.7.0 on my Win XP and want to use MASS. But I get this error message: > library(MASS) Error in namespaceExport(ns, exports) : undefined exports: abbey, accdeaths, Aids2, Animals, anorexia, austres, bacteria, beav1, beav2, biopsy, birthwt, ... Error in library(MASS) : package/namespace load failed I therefore again downloaded VR.zip. When I extracted the files I

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Estimada comunidad, tengo el siguiente problema: 1. tengo un data.frame con varias columnas, algunas numericas, otras son variables categoricas 2. necesito hacer un calculo simple sobre este data.frame (un promedio ponderado de los valores de la columna 7), pero solo para las filas que cumplan ciertos criterios 3. en ocasiones ninguna de las filas

O que ? CentOS? CentOS Enterprise Linux ? uma distribui??o baseada no Red Hat Enterprise Linux. CentOS Cada vers?o ? suportada por 7 anos (por meio de atualiza??es de seguran?a). CentOS Uma nova vers?o ? liberada a cada 2 anos, e cada vers?o CentOS ? actualizado regularmente (a cada 6 meses) para suportar os hardware mais novos. Isso resulta em uma rede segura, de baixa manuten??o, confi?vel e