So when the world is taken over by a Zombie horde, you're going to want to figure out a way to get the human population to safety. This R script by econometrician Francis Smart won't help you do that exactly, but given a list of waypoints to navigate through zombie-infested lands to a safe house, it will tell you...
R posts in other languages
- 适合初学者的R语言教程
- SAS hat einen neuen Vergleich von SAS und R veröffentlicht
- 实现可重复的统计slides
- О связи между “утечкой мозгов” и объемом пассажирских перевозок
- Новая книга по основам прогнозирования (с использованием R)
- Двухфакторный дисперсионный анализ
- Revolution R Enterprise 6.2 mit neuen Funktionen für hoch performante Analysen auf Big Data
- Third Milano R net meeting: leave a comment
- Photos of the third Milano R net meeting
- Presentations of the third Milano R net meeting
Solving Multiple Supplier Selection Problem using R and LP Solve
(This article was first published on Enterprise Software Doesn't Have to Suck, and kindly contributed to R-bloggers) To leave a comment for the author, please follow the link and...
R 3.0.1 is released
R 3.0.1 (codename “Good Sport”) was released last week. As mentioned earlier by David, this version improves serialization performance with big objects, improves reliability for parallel programming and fixes...
Non-Verbal Reasoning Test – Concerto
I have just released my first complete test of non-verbal problem solving skills. It is run on Concerto (an R-based application development platform targeted at primarily test developers) Try...
More on Chutes & Ladders
Matt Maenner asked about the sawtooth pattern in the figure in my last post on Chutes & Ladders. Damn you, Matt! I thought I was done with this. Don’t...
Model fitting exam problem
Recently I have run an exam where the following question had risen many problems for students (here I give its shortened formulation). You are given the data generating process...
qdap 0.2.2 released
I’m very pleased to announce the release of qdap 0.2.2 This is the third installment of the qdap package available at CRAN. The qdap package automates many of the...
analyze the new york city housing and vacancy survey (nychvs) with r
for those interested in the real estate and rental markets of the big apple, the census bureau's nyc housing and vacancy survey might be your key to the city. ...
Playing cards in Vegas?
In a previous post, a few weeks ago, I mentioned that I will be in Las Vegas by the end of July. And I took the opportunity to write...
More tide prediction with R
In the previous post I outlined how to query the XTide software with R and parse the results into a handy-dandy data frame. The biggest hurdle with that method...
R code to obtain and plot rainfall data for the whole world
If you want to create rainfall maps for the whole world in R there is no readily available code or package to do this. Moreover, data publicly available from...
Update to PSID panel builder for R: psidR
I just pushed the most recent version of the PSID panel data builder introduced a little while ago. Got some user feedback and made some improvements. The package is...
Sharing my R notes
I started working with R 2 1/2 years ago. I remember opening R closing it and thinking it was the dumbest thing ever (command line to a non programmer...
R (Web Server) Solutions – Amplifying Artichokes
Every month I see one or more new R based web server solutions coming into the market, sight seeing some of them thought of sharing one of my old...
What is probabilistic truth?
I am currently working on a validation metric for binary prediction models. That is, models which make predictions about outcomes that can take on either of two possible states...
Recent Changes to caret
Wiekvoet 2013-05-18 02:26:00
I was reading Paul Hiemsta's blogpost on Much more efficient bubble sort in R using the Rcpp and inline packages, went back to his first post Bubble sort implemented in pure...
Interfacing XTide and R
XTide is an open-source program that predicts tide heights and current speeds for hundreds of tide and current stations around the United States. It can be used to produce...
Unit conversion in R
Last weekend I submitted an update of my R package datamart to CRAN. It has been more than a half year since the last update, however there are only...
Chutes & ladders: How long is this going to take?
I was playing Chutes & Ladders with my four-year-old daughter yesterday, and I thought, “How long is this going to take?” I saw an interesting mathematical analysis of the...
Which Torontonians Want a Casino? Survey Analysis Part 2
In my last post I said that I would try to investigate the question of who actually does want a casino, and whether place of residence is a factor...
R 3.0.1 released
The R core group has quickly followed up with a patch to R version 3. Announced yesterday, R 3.0.1 (code name: "Good Sport") improves serialization performance with big objects,...
Revolution Newsletter: May 2013
The most recent edition of the Revolution Newsletter is out. The news section is below, and you can read the full May edition (with highlights from this blog and...
Strategic Zombie Simulation – Animation – Jimmy’s Down
# Escape Zombie Land!# This is a simulation an escape from a hot zombie zone. It freezes and gives an error if you get get killed so you had...
Innovation Will Never Be At The Push Of A Button
@randyzwitch @benjamingaines @usujason I am envisioning the data science equivalent of an autonomous vehicle pileup. — Todd Belcher (@toddmetrics) May 16, 2013 Recently, I’ve been getting my blood...
Preferential attachment applied to frequency of accessing a variable
If, when writing code for a function, up to the current point in the code distinct local variables have been accessed for reading times (), will the next read...
Analyzing a simple experiment with heterogeneous variances using asreml, MCMCglmm and SAS
I was working with a small experiment which includes families from two Eucalyptus species and thought it would be nice to code a first analysis using alternative approaches. The...
Finding patterns in time series using regular expressions
Regular expressions are a fantastic tool when you’re looking for patterns in time series. I wish I’d realised that sooner. Here’s a timely example: traditionally, when you have two...
Social Network Analysis at New Frontiers in Computing 2013
by Joseph Rickert This past Saturday, the New Frontiers in Computing Conference (NFIC 2013), held at Stanford University, explored the theme: Social Network Analysis: It’s Who You Know. The...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
