I am not sure how many of you have seen this Business Insider article. It is basically about a shiny app created by Joshua Katz as NC State. It is really fun playing with shiny app.With nearly a million facebook likes this web app buil...
1469 search results for "Map"
Annotating select points on an X-Y plot using ggplot2
or, Is the Seattle Mariners outfield a disaster?
The Backstory
Earlier this week (2013-06-10), a blog post by Dave Cameron appeared at USS Mariner under the title “Maybe It's Time For Dustin Ackley To Play Some Outfield”. In the first paragraph, Cameron describes to the Seattle Mariners outfield this season as “a complete disaster” and Raul Ibanez as...Fixing My Internet With R and Python
Last summer, I had some internet connectivity problems. Specifically, I would have massive latency issues that affected my conversations on Skype and my relatively pathetic under the best of circumstances efforts at online gaming. It was driving me up a wall and I couldn't figure it out. It hadn't...
A Big Data introduction
Since R uses the computer RAM, it may handle only rather small sets of data. Nevertheless, there are some packages that allow to treat larger volumes and the best solution is to connect R with a Big Data environment. This … Continue reading →
Major League Baseball run scoring trends with R’s Lahman package
(This article was first published on Bayes Ball, and kindly contributed to R-bloggers) The statistical software R has an ever-expanding array of packages that provide pre-programmed functions and datasets. One such package is named Lahman, bundling the contents of the Lahman database into a quick-and-easy resource for R users. In addition to the data tables, the package resources also...
Grid Search for Free Parameters with Parallel Computing
In my previous post (http://statcompute.wordpress.com/2013/05/25/test-drive-of-parallel-computing-with-r) on 05/25/2013, I’ve demonstrated the power of parallel computing with various R packages. However, in the real world, it is not straight-forward to utilize these powerful tools in our day-by-day computing tasks without carefully formulate the problem. In the example below, I am going to show how to use the 
Flotsam 12: early June linkathon
A list of interesting R/Stats quickies to keep the mind distracted: A long draft Advanced Data Analysis from an Elementary Point of View by Cosma Shalizi, in which he uses R to drive home the message. Not your average elementary … Continue reading →
The arteries of the world, in Tweets
What happens when you plot billions of geotagged Tweets on a map? You can see the arteries of the world. Here's Europe: According to creator Miguel Rios (Engineering Manager, Data Visualization at Twitter), the dots on this chart represent every geotagged Tweet since 2009. The color represents number of tweets in the region, and the intensity shows where people...
accurate ABC: comments by Oliver Ratman [guest post]
![accurate ABC: comments by Oliver Ratman [guest post]](http://feeds.wordpress.com/1.0/comments/xianblog.wordpress.com/20814/)
Here are comments by Olli following my post: I think we found a general means to obtain accurate ABC in the sense of matching the posterior mean or MAP exactly, and then minimising the KL distance between the true posterior and its ABC approximation subject to this condition. The construction works on an auxiliary probability 
Couch, apis and all that
It is getting easier to get data directly into R from the web. Often R packages that retrieve data from the web return useful R data structures like a data.frame or plot. This is a good thing of course to make things user friendly.
However, what if you want to drill down into the data that's returned from a query...
Zero Inflated Models and Generalized Linear Mixed Models with R.
Zuur, Saveliev, Ieno (2012).
