Publications by Tal Galili
The R journal – Volume 5/1, June 2013
Complete issue Complete bibliography Table of contents Editorial Hadley Wickham Contributed Research Articles RTextTools: A Supervised Learning Package for Text Classification Loren Collingwood, Timothy P. Jurka, Amber E. Boydstun, Emiliano Grossman, Wouter van Atteveldt Generalized Simulated Annealing for Global Optimization: the GenSA Pack...
2608 sym 1 img
Creating good looking survival curves – the ‘ggsurv’ function
This is a guest post by Edwin Thoen Currently I am doing my master thesis on multi-state models. Survival analysis was my favourite course in the masters program, partly because of the great survival package which is maintained by Terry Therneau. The only thing I am not so keen on are the default plots created by this package, by using plot.su...
3088 sym R (5420 sym/5 pcs) 8 img 5 tbl
Tailor Your Tables with stargazer: New Features for LaTeX and Text Output
Guest post by Marek Hlavac Since its first introduction on this blog, stargazer, a package for turning R statistical output into beautiful LaTeX and ASCII text tables, has made a great deal of progress. Compared to available alternatives (such as apsrtable or texreg), the latest version (4.0) of stargazer supports the broadest range of model obje...
4565 sym R (1443 sym/5 pcs) 6 img 5 tbl
Analyzing Your Data on the AWS Cloud (with R)
Guest post by Jonathan Rosenblatt Disclaimer: This post is not intended to be a comprehensive review, but more of a “getting started guide”. If I did not mention an important tool or package I apologize, and invite readers to contribute in the comments. Introduction I have recently had the delight to participate in a “Brain Hackathon”...
12668 sym 2 img 1 tbl
K-means Clustering (from “R in Action”)
In R’s partitioning approach, observations are divided into K groups and reshuffled to form the most cohesive clusters possible according to a given criterion. There are two methods—K-means and partitioning around mediods (PAM). In this article, based on chapter 16 of R in Action, Second Edition, author Rob Kabacoff discusses K-means clusteri...
6795 sym R (3239 sym/4 pcs) 6 img 4 tbl
Enhanced meboot package, simulating regression standard errors
In my June 25 post I described R- (i) code to change scale without changing the mean, and (ii) code to make a probability distribution symmetric by modifying order statistics. Both are commonly encountered problems by R programmers. My coauthor Javier Lopez-de-Lacalle of Spain has incorporated an efficient version of my code inside the ma...
3015 sym R (9485 sym/1 pcs)
Free R Graphics Workshop, Copenhagen, Denmark, 26th August
Mango Solutions are pleased to announce a free R Graphics Workshop in Copenhagen on Monday 26th August (6-8pm). The workshop is open to all and any interested R users or those wishing to learn more about R. The workshop will focus on using R to create powerful graphics, specifically covering: • An intro...
660 sym
Rcmdr version 2.0-0 now on CRAN
Guest post by John Fox (based on his announcement in the mailing list) Dear R-help list members, Version 2.0-0 of the Rcmdr package is now on CRAN and should appear presently on the various CRAN mirrors. As its number implies, this version represents a milestone in the development of the package, which first appeared on CRAN mor...
2061 sym 2 img
Monthly R jobs on r-bloggers
R-bloggers is now offering a new “R jobs” post, that will be published (around) once a month. If you are interested in asking for a job to be posted on r-bloggers, please e-mail me at: [email protected]m (please write in the subject line the text “R job” so I could have easy e-mail filtering on it 🙂 ). This first post...
1125 sym 1 img
Statistics.com Partners With CrowdANALYTIX to Offer New Online Course With Crowdsource Contest As Project
Statistics.com, a provider of online education in statistics and analytics, announces a partnership with CrowdANALYTIX, a predictive modeling “managed crowdsourcing” company, offering a new online course, “Applied Predictive Analytics in partnership with CrowdANALYTIX“, which will run from Oct. 11 to Nov 8, 2013. Crowdsourcin...
3032 sym