similar to: Influence diagnostics for nlme / lme objects

Dear listserv members, In Croissant (2008) “Panel Data Econometrics in R: The plm Package” the authors seem to indicate that the nlme package for R cannot correctly handle unbalanced panel data: “Moreover, economic panel datasets often happen to be unbalanced (i.e., they have a different number of observations between groups), which case needs some adaptation to the methods and is not

I am using survreg from the survival package to run a left censored tobit model on “non-survival” data. I have to four questions that I hope someone can help me with: 1) Is there anything I should take into consideration when using frailty() to estimate random intercepts? 2) Is there anyway of extracting the estimated intercepts produced by survreg when using frailty()? 3) Can someone point

Estimados, A todos quienes estan insterados y estan en Stgo de Chile les tengo una muy buena noticia. Desde hace ya algunas semanas, nos hemos sentado a la mesa con Alex (Epidemiologo) a discutir la necesidad de desarrollar un curso de R para principiantes. No solo porque es necesario unirse en torno a un projecto como es el R, sino que es una oportunidad para muchos cientificos (como

Estimados, A todos quienes estan insterados y estan en Stgo de Chile les tengo una muy buena noticia. Desde hace ya algunas semanas, nos hemos sentado a la mesa con Alex (Epidemiologo) a discutir la necesidad de desarrollar un curso de R para principiantes. No solo porque es necesario unirse en torno a un projecto como es el R, sino que es una oportunidad para muchos cientificos (como

Hi, How i can install the package "adapt" in some version of R for mac? i try in 2.13, 2.9,2.7 and other previous versions... and nothing happens. and another question: There are some packages that do the same but that it is implemented for mac? (calculate integrals in 2 or more dimmensions). help me please, it's for an important work. greetings. -- Matías Hernán Ramírez

Hello everyone, I working in a public health project and we have created a Decision Tree for categorical variables usign the package rpart. Our goal is to develop a model (Using the ROC tool) in order to predict presence/ausent of  diabetes and get a better understanding  of what are the important factors in a particular chilean population.  There are some importants variable that we have found. 

Do Users of Nonlinear Mixed Effects Models Know Whether Their Software Really Works? Lesaffre et. al. (Appl. Statist. (2001) 50, Part3, pp 325-335) analyzed some simple clinical trials data using a logistic random effects model. Several packages and methods MIXOR, SAS NLMIXED were employed. They reported obtaining very different parameter estimates and P

Hi, I have discovered a bug in the rhost module of Linux-PAM-0.57. This bug leads to a vulnerability in the remote login authentication, with the effect that ordinary user accounts may not be password protected. There is only one case when the bug causes a vulnerability: The problem case is when the user''s .rhost file has the name of a machine with *more than one IP address* as the

Queridos R-usuarios!   Con mis colegas estamos creando un curso básico de nuestra espectacular herramienta R. Nos hemos dado cuenta que muchas personas usan software comercial y pensamos que sería una buena oportunidad para dar un curso gratis acerca de R. Por otro lado, puede ser una buena oportunidad para crear un grupo de usuarios activos de R aquí en Chile.   Actualmente, estamos invitando

(English version below) Queridos R-usuarios!   Con mis colegas estamos creando un curso básico de nuestra espectacular herramienta R. Nos hemos dado cuenta que muchas personas usan software comercial y pensamos que sería una buena oportunidad para dar un curso gratis acerca de R. Por otro lado, puede ser una buena oportunidad para crear un grupo de usuarios activos de R aquí en Chile.  

I just found a bug in fisher.test(). This is rw1080, on windows XP. A p-value can certainly not be Inf, but: > religion Costumbres rel orig Religion Si Algunas veces Nunca católica 2121 4700 6234 prot/evan 100 216 2461 otra C 27 67 502 otra 0 0 14 > fisher.test(religion, workspace=2000000)

How can I change the tick mark values in lattice, specifically wireframe? I have a 11*46 matrix of values that I am plotting using wireframe. Unfortunely, the values range from 0.1-1.1 and 0.5-5. Using the code below the tick marks have are (2,4,6,8,10) and (10,20,30,40). Thanks in advance. graphic5 <- wireframe(output.matrix, shade= TRUE, scales = list(arrows = FALSE, cex=.6,

Hello, I was using version 2.13.2 and I have just downloaded the latest version 2.14.1. However, I''m trying to install the packages I was using and when I look for them in the packages list, I can´t find many in the CRAN binaries (e.g. "vegan"). I do find them in the CRAN sources but the installation fails. I tried downloading the version 2.14.0 and I had the same problem. I

the code is list below , i can run this code for laplace approximation but not importance sampling. the code work properly if use impSamp=0 , but error for any other number >0 . could you guys help me out. thanks so much ! source("http://www.mi.uib.no/~skaug/cash/lesaffre_dat.s") library(glmmADMB) fit_glmmADMB_ip <-

Hi here, i recently notice the software built by otter company know as AD-MB tools . i explore a little bit this tools under the R Package for mixed logistics model. it is a very interesting tool. but i get several questions. first question: i tried the R code below, and have the error , i can run the code for switching the setting to impSamp=0 , it means i can only run the code under

Hello everybody, Is there in R a so called box m-test for testing the equality of the variance/cov. matrix for checking on homoscedasticity? I could not find it among the traditional packages for multivariate statistics... Petra -- Petra Wallem Centro de Estudios Avanzados en Ecolog伱伃a & Biodiversidad (CASEB) Departamento de Ecolog伱伃a Facultad de Ciencias Biol伱伋gicas Pontificia

Hi everyone, I am beginner using R but I try to learn more. I need this graphic or similar but instead of tropical and temperate are three ontogenetic states Larva Met Juv CTMAX CTMIN SP SP SP This is my scrip: Ex = subset(Expr, Outlayer=="N") Ex2 = subset (Ex, S0 == 1) Ex3

Dear Friends, I am really glad to share this link with you. Some of you have been instrumental to the success of the work. You are acknowledged accordingly. I am ever indebted. Best wishes Ogbos ---------- Forwarded message --------- From: Elsevier - Article Status <Article_Status at elsevier.com> Date: Wed, Oct 7, 2020 at 10:50 AM Subject: Share your article [ATP_105460] published in

Hi My name is Jose Manuel Cortes and im developing an IP telephony project, im going to interconnect a definity prologix PBX with an asterisk server (i still don't know what kind of cards i'll use digium, sangoma or voicetronix)trough a E1 connection in order to add ip telephony to the university. I would like to know if there's a compatibility problem with this. I send you a

Hi I have a project where I need to connect an asterisk server to an avaya definity prologix PBX in order to add ip telephony to a organization, actually there's no E1 ports available for connections, I want to use a 2 port card (still dont know wich digium or sangoma), then one E1 cable will be desconnected from the PBX and connected to the asterisk server and the other port from the