(Written by Ian Fellows) Below is a link to the first of a weekly (or bi-weekly) screen-cast vlog of my progress building a GUI for the ggplot2 package. http://neolab.stat.ucla.edu/cranstats/gsoc_vlog1.mov comments and suggestions are more than welcome, and can e-mailed to me at: [email protected]
Usually when you are doing Monte Carlo testing, you want fake data that’s good, but not too good. You may want a sample taken from the Uniform distribution, but you don’t want your values to be uniformly distributed. In other words, if you were to order your sample values from lowest to highest, you don’t
I first encountered the R programming language a few years ago when I needed to make some plots. Although I’ve used it occasionally since, I always considered it a sort of “Perl for statisticians” — a useful swiss-army knife with … Continue reading →
I must confess to feeling an almost obsessive fascination with intransitive games, dice, and other artifacts. The most famous intransitive game is rock, scissors, paper. Rock beats scissors. Scissors beats paper. Paper beats rock. Everyone older than 7 seems to know this, but very few people are aware that dice can exhibit this same behavior,
Jack Germain of LinuxInsider interviewed Revolution CEO Norman Nie for his "Startup to Watch" column. Amongst the topics covered: the R language (Norman: "There are no statistical expressions that can not be written in R"), Revolution's recent name-change and announcement of our development roadmap, and the challenges of competing with SAS and Norman's former company, SPSS. Read the full...
For the last couple of years, Mexico has been in the midst of an escalating drug war, with violent crime on the upswing in many areas. But tracking the impact quantitatively is difficult: in Mexico, about 85% of crimes go unreported, and corruption leads to inaccurate reporting in some districts. Diego Valle has taken on the task of visualizing...
I currently use an awesome little bash trick to get a command line calculator that was posted on lifehacker, and that I blogged about previously.calc(){ awk "BEGIN{ print $* }" ;}You just add this to your .bashrc file and then you can use it ...
I currently use an awesome little bash trick to get a command line calculator that was posted on lifehacker, and that I blogged about previously.calc(){ awk "BEGIN{ print $* }" ;}You just add this to your .bashrc file and then you can use it ...
We can fit various linear regression models using the R Commander GUI which also provides various ways to consider the model diagnostics to determine whether we need to consider a different model. Fast Tube by Casper The “Statistics” menu provides access to various statistical models via the “Fit models” sub-menu including: Linear regression – the simplest scenario with
Ever have conversations with your kids about what they are going to do with their life? Still trying to figure out what you are going to do with yours?Best to not starve...The chart above represents the percentage of each occupation that earn a given h...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
