similar to: Vintage Attrition Curves

Hi, I am trying to do some predictive modeling around attrition and want to split the dataset into test and train (80:20) and keep the ratio of attritees:non attrites same. In my dataset the attrition indicator is coded as 0(for non-attritees) and 1 (for attritees) and I want to keep the ratio of 0's to 1 similar. I apologize for this trivial question but this is my second week with R.

Dear R community I am using the gee package to run logistics regression on paired cases from a panel sample. We are getting request from a reviewer to use sample weights to account for different level of attrition. After searching the documentation I am unable to find a way to incorporate sample weights into the gee formula. I found a way to incorporate precision weight but I understand that I

Hey Jarett, 2009/2/24 <jarett.stevens at usermail.com> > After upgrading to the 2.4.1 version, I wasn't able to read as many > variables from my UPS. After a bit of experimentation, I determined that > the firmware on my UPS was different than what is currently in the > apcsmart driver, though it had worked before. I located my firmware > version (5ZM), and added in

Hope this isn't too far OT, but its relevant to us. From isn.attrition.org >http://www.informationweek.com/story/showArticle.jhtml?articleID=20300851 > >By W. David Gardner >TechWeb News >May 13, 2004 > >As voice over IP sweeps across the high-tech landscape, many IT >managers are being lulled into a dangerous complacency because they >look upon Internet phoning

http://bugzilla.mindrot.org/show_bug.cgi?id=132 Summary: connects to 1.2.2? vintage sshd sometimes gets "Server lies" about host key size off by 1 bit Product: Portable OpenSSH Version: -current Platform: All OS/Version: other Status: NEW Severity: normal Priority: P2

I have a data set with observations on 549 cities spanning an 18 year period. However, some of cities did not report in one or more of the 18 years. I would like to implement the procedure suggested by Wooldridge section 17.1.3 in his "Econometric analysis of cross section and panel data" to correct for attrition. For example the table below indicates that the 3rd and the 7th cities in

http://bugzilla.mindrot.org/show_bug.cgi?id=132 markus at openbsd.org changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|markus at openbsd.org |openssh-unix-dev at mindrot.org ------- You are receiving this mail because: ------- You are the assignee for the bug, or are

http://bugzilla.mindrot.org/show_bug.cgi?id=132 ------- Additional Comments From dwd at bell-labs.com 2002-03-02 02:29 ------- Created an attachment (id=30) Patch against CVS of March 1, 2003 ------- You are receiving this mail because: ------- You are the assignee for the bug, or are watching the assignee.

Hi, There's a RHEL5 system somewhere across the internet with a trashed root file system. I have VPN access to the subnet where it lives. But the system is not talking to the network. The current plan is having an onsite person boot from a CentOS Live CD, copy a small script to configure networking, set a password for the centos user, start sshd, and tweak the default firewall to allow

Afternoon I upgraded our oss''s from 1.8.3 to 1.8.4 on Saturday (due to https://bugzilla.lustre.org/show_bug.cgi?id=22755) and suffered a great deal of pain. We have 30 oss''s of multiple vintages. The basic difference between them is * md on first 20 nodes * 3ware 9650SE ML12 on last 10 nodes After the upgrade to 1.8.4 we were seeing terrible throughput on the nodes with

I've asked about custom sorting before and it appears that -- in terms of a user-defined order -- it can only be done either by defining a custom class or using various tricks with "order" Just wondering if anyone has a clever way to order "vintages" of the form 2002, 2003H1, 2003H2, 2004, 2005Q1, 2005Q2, etc some have H1 or H2, some have Q1,Q2,Q3,Q4, some are just plain

Hi there, Command line binaries should only do one thing, and do it well. The job of flac (or flac.exe in windows) is to take something and compress it. Shells implement commands to do things like searches, string matching, looping, and stream editing. I wouldn't want to see Josh waste his time re-implementing and having to maintain "dir", "grep", or "find"

Hi all, I a semi-beginner with R and I am working with the plm package to examine a longitudinal dataset. Each individual in this dataset has a longitudinal weight for the probability that he or she remains in the sample. Unfortunately, I have not found an argument to use weights in the plm function? I tried ?weights=? like in standard lm or in nlme or lm4 but it does not work. I asked the

We are about to abandon GlusterFS as a solution for our object storage needs. I'm hoping to get some feedback to tell me whether we have missed something and are making the wrong decision. We're already a year into this project after evaluating a number of solutions. I'd like not to abandon GlusterFS if we just misunderstand how it works. Our use case is fairly straight forward.

Dear all, First, I would like to thank you for your immense work. My question is about a frequent topic which I am not able to solve - even after hours of search in the mailing lisy. I would like to analyse random-effects (and fixed-effects)models of longitudinal / panel data with sampling weights. I have an unbalanced panel of different individuals in 5 years and income data as well as their

I am also having an issue with no sound on some CentOS desktop systems. I manage about 3 dozen desktops. These are all Lenovo ThinkCentre systems of varying vintages, but there are only 2 distinct sound controllers among all of them: 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 02) 00:1b.0 Audio device: Intel Corporation N10/ICH 7 Family High Definition

Dear all, Should you be interested in a career at our mechanism-based PK-PD modeling platform, please read the remainder of this message. Best wishes, Margot Beukers Unique PK-PD modeling platform established in The Netherlands Are you our ambitious IT platform manager with a profound drive to contribute to a new era of drug research? PK-PD modeling platform Prof. dr.

(I am not sure if this is a bug or a request for a more understandable warning, or possible something obvious I should be posting on r-help.) I am trying to coerce an new class object to be a DBIConnection and it does not work the way I think it should: R version 2.5.1 (2007-06-27) ... > require("RMySQL") # or require("RSQLite") Loading required package: RMySQL Loading

Hello R users, I have a full time job opportunity at SolutionSet, 100% working for Google in Mountain View, CA. Email me your resume at mae.coughlin at solutionset.com, if you are interested. Thank you! --mae Strategy & Analytics Lead Consultant for Google Position overview: As a valued member of our marketing service agency SolutionSet, you?ll work collaboratively with our account &

Our CEO, Dr. Dan Steinberg, is planning to visit Europe in May. He would like the opportunity to introduce statisticians (and statistically minded people) to data mining, data mining applications and to forefront data mining tools. Our algorithms are probably familiar to many statisticians (CART, MARS, MART, TreeNet and RandomForests), although it isn't necessary to be a statistician to