similar to: Question of "Quantile Regression for Longitudinal Data".

Hi, I am trying to estimate a quantile regression using panel data. I am trying to use the model that is described in Dr. Koenker's article. So I use the code the that is posted in the following link: http://www.econ.uiuc.edu/~roger/research/panel/rq.fit.panel.R How to estimate the panel data quantile regression if the regression contains no constant term? I tried to change the code of

Quantile Regression for Longitudinal Data. Hi, I am trying to estimate a quantile regression using panel data. I am trying to use the model that is described in Dr. Koenker's article. So I use the code the that is posted in the following link: http://www.econ.uiuc.edu/~roger/research/panel/rq.fit.panel.R I am trying to change the number quantiles being estimated. I change the codes about

Hi, I am trying to estimate a quantile regression using panel data. I am trying to use the model that is described in Dr. Koenker's article. So I use the code the that is posted in the following link: http://www.econ.uiuc.edu/~roger/research/panel/rq.fit.panel.R While this code run perfectly, it does not work for my data providing a warning message: In rq.fit.sfn(D, y, rhs = a) : tiny

I've been trough the R documentation for about half an hour and it's not clear to me how to do this: I need to format to character a series of integers from 1 to 1000, and I like them to look like "0001" "0002", "0059", "0123" and so on. Padded with zeroes to have four digits. Cheers! Mario. r-help-request at r-project.org wrote: > Send

Hi All, I have a dataset, longitudinal in nature, each row is a 'visit' to a clinic, which has numerous data fields and a count variable for the number of 'events' that occurred since the previous visit. ~50k rows, ~2k unique subjects so ~25 rows/visits per subject, some have 50 some have 3 or 4. In STATA there is an adjustment for the fact that you have multiple rows per

Hi all, does anybody know about R implementations for quantile regression for longitudinal data? I am just aware of a very basic version of R. Koenker's approach using fixed effects. Thanks in advance Armin

Dear Dimitris, I have exactly the same problem than you, Do you get some solution? Thanks, Lola Lola Gadea Profesora titular de Economía Aplicada/Lecturer in Applied Economics Universidad de Zaragoza/University of Zaragoza (Spain) lgadea@unizar.es <http://estructuraehistoria.unizar.es/personal/lgadea/index.html>http://estructuraehistoria.unizar.es/personal/lgadea/index.html Grupo de

Dear R user I would like to run some panel regressions with R. Therefore I want to use fixed effect model. I consulted nlme package pdf. Unfortunately I couldn't find anything clear example about fixed effect model. Is there any defined function to calculate panel data under fixed effect model. I need some suggestions or examples. Thanks Best Helen Chen -- View this message in context:

I'm a new user, so my apologies for what is likely a dumb question... I am having a hard time getting a table of regression results when using Koenker's code for quantile regression with fixed effects (http://www.econ.uiuc.edu/~roger/research/panel/rq.fit.panel.R). I use the example data parameters that Koenker provides (see below). m <- 3 n <- 10 s <- rep(1:n,rep(m,n)) x <-

Dear all, I am trying to compare the estimated coefficients of a quantile regression model between two different samples. It is a Wald test, but I cannot find one way to do that in R.The samples are collected conditional on a specific characteristic and I would like to test whether such characteristic indeed affect the estimators. The problem in the test anova.rq is that the response variable

I'm getting repeated email (KMail) error messages about one apparently over-large post: -------------------------- Received: from helen.gayleard.com (localhost.localdomain [127.0.0.1]) by helen.gayleard.com (Postfix) with ESMTP id E4500294A0 for <tim at helen.gayleard.com>; Sat, 24 Jan 2015 14:00:05 +0000 (GMT) Received: (from tim at localhost) by helen.gayleard.com

I don't understand Windows permissions under Samba. I am running an smb server under CentOS-5.4, and have a Windows XP Pro machine ("harriet") as a client. I have set up shares C and D on harriet corresponding to the 2 drives C: and D: on the machine, and I have asked that files should be shared. Now when I mount harriet:C I can see the top level folders, but cannot see Documents

I don't understand Windows permissions under Samba. I am running an smb server under CentOS-5.4, and have a Windows XP Pro machine ("harriet") as a client. I have set up shares C and D on harriet corresponding to the 2 drives C: and D: on the machine, and I have asked that files should be shared. Now when I mount harriet:C I can see the top level folders, but cannot see Documents

Hello all, I am currently working with rpart to classify vegetation types by spectral characteristics, and am comming up with poor classifications based on the fact that I have some vegetation types that have only 15 observations, while others have over 100. I have attempted to supply prior weights to the dataset, though this does not improve the classification greatly. Could anyone supply some

I neade to run a script under Wine but the script requires a cmd dos so atm dosent works (i neade to connect an ftp and upload some files) is thear any emulate that i can install on wine so that i have that posibility? Thank's Helen 8)

I have a strange problem on a CentOS-5.8 machine. I can only login as root. If I try to login with one of the user's names, it hangs for a long time. I thought it hung forever, but I just found that I do login after "su tim" after 5 minutes. It seems that the problem lies in repeated messages in /var/log/messages --------------------------- May 3 12:14:13 helen su: nss_ldap: failed

I'd be interested in any corrections or comments on the following instructions (basically for myself): We assume that BackupPC has been installed: sudo yum install BackupPC 1. BackupPC must be run by the user backuppc. Accordingly the lines User apache Group apache in /etc/httpd/conf/httpd.conf should be changed to User backuppc Group backuppc 2. The user backuppc must be able to

Hello R, I am looking for non-parametric simulation in IRT. Is there any IRT package that does non-parametric simulation? helen L [[alternative HTML version deleted]]

Hiya everyone, I''ve downloaded instant rails and have made a application on my machine which is local. I need to now move this onto my university space so I can demostrate it in a few weeks time..only i''m not really sure how I do it? Would anybody be able to offer me some advice, or point me in some direction where I could find out. Many thanks in advance! Helen --

Is anyone out there running Microsoft's Visual Source Save with a samba share? We are doing so here and are encountering difficulties. The "working directory" is a samba share. It seems that VSS is not manipulating file permissions appropriately when items are checked in and out. User always has write access to the item. Is anyone using MS VSS successfully with samba and care to