similar to: Missing data diagnostics and apology

Greetings, I'm in the painful process of migrating from SAS to R. In the process I've discovered that there are some basic things that I am getting hung up on. The most basic is the simple recoding of variables. Suppose I create a vector x <- rnorm(10000) and I want to recode all values of x > 1.5 to NA. How would I do that in R? TIA Cheers, Patrick

Greetings, The attached code is my preliminary attempt to create a comprehensive missing data diagnostic package. I would greatly appreciate any constructive feedback about the code and encourage others to use it if they feel it is helpful. One warning might be in order - I have tested the mcar test only superficially. There might be a few other bugs but it mostly works for my initial

Hello, R-folks: Here is a statement I use to make a data frame: iccdata <- data.frame(i=rep(1:10,rep(2,10)),j=rep(1:2,10), x=c(0.35011,0.11989,0.13081,0.09919,0.16000,0.12000,0.00000,0.00000, 0.44023,0.32977,2.67081,2.63919,0.09050,0.03950,0.44019,0.30981,0.59000, 0.57000,4.03000,3.77000)) Then here are the data: > iccdata i j x 1 1 1 0.35011 2 1 2 0.11989 3 2 1 0.13081 4

________________________________ Title: Scientific Programmer ? Simulation Analysis Salary: $50-70k/y Full Description and Application Portal: https://uacareers.com/postings/31668 We seek a scientific programmer to join the agricultural data science initiative at the University of Arizona. Our team is responsible for developing automated pipelines for data collection, simulation modeling,

I'm trying to install the XML package in R 1.6.1 (>install.packages("XML")). The download is OK, but during configuration the file parser.h cannot be found (it looks in libxml/ and gnome-xml/ then gives up). What is missing from my system? -- Thanks, -susan Susan J. Miller Biotechnology Computing Facility Arizona Research Laboratories Bio West 228 University of Arizona

Dear R users, Prof. Ripley just corrected my understanding of the use of weights in glm, which I thought would allow me to correctly use lmer. However I'm still having problems. My data takes the form of # of infected and uninfected individuals that were measured over time under different treatments. I'm using lmer to adjust for the repeated measures over time. In fitting the

Hello, I am a new R user. I am trying to calculate vector correlations for all pairwise comparisons in my data frame without repeats. I am familiar with the expand.grid function, but this includes repeats. Is there a way to use expand.grid and eliminate repeats? Or is there another function that can be used to do this? Thank you. Rebecca -- Rebecca Young Graduate Student Ecology &

platform i386-pc-mingw32 arch i386 os mingw32 system i386, mingw32 status major 1 minor 7.1 year 2003 month 06 day 16 language R I have a Dell Inspiron 4000 laptop with Windows ME. I recently installed the 1.7 version of R. The following commands are from my

Hello, Can you get eigenvalues in addition to eigevectors using prcomp? If so how? I am unable to use princomp due to small sample sizes. Thank you in advance for your help! Rebecca Young -- Rebecca Young Graduate Student Ecology & Evolutionary Biology, Badyaev Lab University of Arizona 1041 E Lowell Tucson, AZ 85721-0088 Office: 425BSW rlyoung at email.arizona.edu (520) 621-4005

Hi, I am trying to use the Tps procedure to visualize 3 variables in XYZ space, but keep getting the error messages below: Warning messages: 1: In Krig.find.gcvmin(info, lambda.grid, gcv.grid$GCV, Krig.fgcv, : GCV search gives a minimum at the endpoints of the grid search 2: In Krig.find.gcvmin(info, lambda.grid, gcv.grid$GCV.one, Krig.fgcv.one, : GCV search gives a minimum at the endpoints

I am a novice R user, and have been in trouble to get the right mixed model syntax in microarray analyses. There are three factors: Dye(2 levels), Temperature(3 levels) and Array(3 for each Temperature with a total of 9 arrays). I want to treat array as random, and to regard array variation different between Temperatures. So the model I want to seek is: Y = Dye + Temp + Dye + Temp*Dye +

We's like to invite all of you to attend the first annual KVM Forum 2007. Please click here http://www.qumranet.com/KVMForum2007.php to be taken to the event site where you can learn more about the KVM Forum 2007 and register online. Hosted by the KVM Developer Community, the purpose of the forum is to bring together developers, testers and other technical individuals from within the community

We's like to invite all of you to attend the first annual KVM Forum 2007. Please click here http://www.qumranet.com/KVMForum2007.php to be taken to the event site where you can learn more about the KVM Forum 2007 and register online. Hosted by the KVM Developer Community, the purpose of the forum is to bring together developers, testers and other technical individuals from within the community

All, Recently I ran across a URL documenting published research using R: http://www.cgd.ucar.edu/ccr/ammann/millennium/CODES_MBH.html A note on the site indicates that the code is being revised. The code and data are provided, so that one could reproduce the results without having to buy a proprietary software program. In poking around the R website it is clear that a lot of thought has gone

Since Jay posted the thing for Phoenix I''d thought I''d check for Tucson, AZ developers (I only know of one so far). -warner

First time using Rsync and during testing i have two servers one server the backup went fine know problems. But the second one when the backup goes ok until it gets to three files in different directories. I get rsync: read errors mapping the then filepath and filename and at the end it gives Invalid argument (22) i have two files that have that error message. The third message says

Hello all, I have mongrel service 0.3.2 running on Win2003 64-bit, special thanks to Luis for getting that running. You are a great asset! I am trying to figure out exactly what rights are needed by the account that is running the service. It works if I give it a domain account with local admin privileges, but it doesn''t work if I give it a domain account without local admin. I was

Greetings, This seems too rudimentary to ask but for the life of me I cannot locate a readily easy method to compute the univariate mode. I know "mode" is not correct and "table" provides a reasonable count but I figured there would be an easy way to extract the value from the table after I do something like: max(table(mydadat$myvar)) unfortunately it only returns the max

64bit Intel 8 CPU server Windows 2003 Server Service set to run as LocalSystem, doesn''t work as user account either The error we see is: "Service failed to start in a timely..." Which I have seen in the past email trails as working The app works from mongrel_rails start and from mongrel_service console -N servicename -p 3000 -c c:\rails_apps\appname -e production We upgraded

Does anyone know R is to be cited in a publication? I've looked everywhere on the website and cannot find this. Thanks, Heather -- Heather Maughan Department of Ecology and Evolutionary Biology Biosciences West 310 University of Arizona Tucson, AZ 85701 Phone: 520-626-5108 Fax: 520-621-9190 hmaughan at u.arizona.edu