An email from Keith I got this morning: Professor Robert, I have loaded the mcsm package to windows. The following messages appear in the R console: trying URL 'http://cran.stat.ucla.edu/bin/windows/contrib/2.9/mcsm_1.0.zip' Content type 'application/zip' length 193590 bytes (189 Kb) opened URL downloaded 189 Kb package 'mcsm' successfully unpacked and MD5 sums checked But when I use the 
The following fully-automatic Bash script downloads, compiles, and initializes compcache version 0.6.2 on Ubuntu Karmic Koala (9.10). This script creates two swaps with a maximum of 4GB uncompressed size each. Two swaps are used to take advantage of 2 CPUs (or CPU cores in a multicore CPU). Compcache is a fascinating memory compression system. The 
To start sending all output to a file, do this: sink("path/to/filename") # Direct all output to file print("Hi there") # Will be printed to file sink() # Turn off buffing to file Related to this I recently had to use: flush.console() This forces your console to print out any buffered content. Doing this will cost time, but if you are running
Wishing there was a local R User's group in your area, but can't find one? New user groups are springing up all the time, but you can kickstart the process by registering interest for a group in your area at meetup.com. As you can see from the map below, there's interest in many places -- your vote could prompt...
In the past few months, I've developed a set of functions for automating model estimation and interpretation using Mplus, an outstanding latent variable modeling program that has unparalleled flexibility for complex models (e.g., factor mixture models). I recently rolled these functions into an R package called MplusAutomation. Because the package focuses on extracting various parameters from text...
In the past few months, I've developed a set of functions for automating model estimation and interpretation using Mplus, an outstanding latent variable modeling program that has unparalleled flexibility for complex models (e.g., factor mixture models). I recently rolled these functions into an R package called MplusAutomation. Because the package focuses on extracting various parameters from text...
On Tuesday May 4th at 9:30 PM central, 10:30 eastern, I’ll be giving a live online presentation as part of the Vconf.org open conference series. I’ll be speaking about R and why I started using R a couple years ago. This is NOT going to be a technical presentation but rather an illustration of how
This guest article was written by author and consultant Tristan Yates (see his bio below). It emphasizes R’s data object manipulation and scoring capabilities via a detailed financial analysis example. Scoring and ranking systems are extremely valuable management tools. They can be used to predict the future, make decisions, and improve behavior – sometimes all
The post Building...
This guest article was written by author and consultant Tristan Yates (see his bio below). It emphasizes R's data object manipulation and scoring capabilities via a detailed financial analysis example. Scoring and ranking systems are extremely valuabl...
JD Long (of Cerebral Mastication fame) will be giving a live "virtual talk" introducing R: "What it's best at and how you can use it to help you massage data". The talk will be at 7:30PM Pacific time tomorrow, Tuesday May 4. You can register at the link below. vconf.org: Presentation: R The Language
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
