Here is a video tutorial where I go through some of the most commonly used commands in creating and manipulating data. As soon as I want to do more than just running a single regression, I use these commands more than any other set of commands (in som...
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Common Data Creation Commands
Here is a video tutorial where I go through some of the most commonly used commands in creating and manipulating data. As soon as I want to do more than just running a single regression, I use these commands more than any other set of commands (in som...
NBA, Logistic Regression, and Mean Substitution
I’m currently sitting at about 32K feet above sea level on my way from Tampa International to DIA and my options … Continue reading →
Introducing Rook
Rook is a web server interface and software package for R. It is very much like Ruby’s Rack. In fact it is so much like Ruby’s Rack that I decided to use the same name and basic class hierarchy. You could say I “borrowed heavliy” from Ruby’s ...
Progress reading SAS sas7bdat files (natively) in R
This post describes some preliminary results from a compatibility study of the SAS sas7bdat file format. The most current results stored in a github repository here: sas7bdat The ultimate goal is a native solution to the incompatibility between open-source statistical software (e.g. R) and sas7bdat database files. Demonstration There has been significant progress in interpreting
Going over the speed limit
In an earlier post I had reported on how R compared with Stata for executing algorithms involving maximum likelihood estimation. This post offers the following updates on the last post:
Going over the speed limit
In an earlier post I had reported on how R compared with Stata for executing algorithms involving maximum likelihood estimation. This post offers the following updates on the last post:
Exporting R graphics as LaTeX code – version 0.6.1 of the tikzDevice package is out
(Guest post on R-bloggers by Charlie Sharpsteen) Cameron and I are pleased to announce version 0.6.0 of the tikzDevice package which should be available shortly at your local CRAN mirror! The tikzDevice makes it possible to export R graphics as LaTeX code that can be included in other documents or compiled into stand alone figures. The full power of...
Statistics without Maths
I got an interesting message from Chris Atherton the other day who has offered to do a workshop at the Technical Communications UK conference on statistics and data visualisation. The problem is that for some tech writers, their understandin...
Rook shipped to CRAN
I sometimes feel like this picture: alone, left with just my thoughts and a little light to illuminate my work. For my daughter pictured above on the stool, her work is a pen and ink drawing. For me, it’s a finished piece of software to share with t...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
