Blog Archives

Welcome to Simply Statistics 2.0

November 18, 2012
By

Welcome to the re-designed, re-hosted and re-platformed Simply Statistics blog. We have moved the blog over to the WordPress platform to give us some newer features that were lacking over at tumblr. So far the transition has gone okay but … Continue reading →

Read more »

Reproducible Research: With Us or Against Us?

November 15, 2012
By

Last night this article by Chris Drummond of the Canadian National Research Council (Conseil national de recherches Canada) popped up in my Google Scholar alert. The title of the article, “Reproducible Research: a Dissenting Opinion” would seem to indicate that he disagrees … Continue reading →

Read more »

Some Thoughts on Teaching R to 50,000 Students

November 12, 2012
By

Two weeks ago I finished teaching my course Computing for Data Analysis through Coursera. Since then I’ve had some time to think about how it went, what I learned, and what I’d do differently. First off, let me say that it was a lot of fun....

Read more »

Computing for Data Analysis (Simply Statistics Edition)

October 29, 2012
By

As the entire East Coast gets soaked by Hurricane Sandy, I can’t help but think that this is the perfect time to…take a course online! Well, as long as you have electricity, that is. I live in a heavily tree-lined area and so it’s onl...

Read more »

Really Big Objects Coming to R

July 25, 2012
By

I noticed in the development version of R the following note in the NEWS file: There is a subtle change in behaviour for numeric index values 2^31 and larger.  These used never to be legitimate and so were treated as NA, sometimes with a warning.

Read more »

Johns Hopkins Coursera Statistics Courses

July 18, 2012
By

Computing for Data Analysis Data Analysis Mathematical Biostatistics Bootcamp

Read more »

An R script for estimating future inflation via the Treasury market

February 6, 2012
By

One factor that is critical for any financial planning is estimating what future inflation will be. For example, if you’re saving money in an instrument that gains 3% per year, and inflation is estimated to be 4% per year, well then you’re losing m...

Read more »

Plotting BeijingAir Data

December 7, 2011
By
Plotting BeijingAir Data

Here’s a bit of R code for scraping the BejingAir Twitter feed and plotting the hourly PM2.5 values for the past 24 hours. The script defaults to the past 24 hours but you can modify that by simply changing the value for the variable ‘n’.  You c...

Read more »

Contributions to the R source

November 29, 2011
By

One of the nice things about tracking the R subversion repository using git instead of subversion is you can do git shortlog -s -n which gives you 19855 ripley 6302 maechler 5299 hornik 2263 pd 1153 murdoch 813 iacus 716 luke 6...

Read more »

New O’Reilly book on parallel R computation

November 14, 2011
By

New O'Reilly book on parallel R computation: Looks like it covers snow, multicore, parallel (package), and some others. Anyone know anything more about this book?

Read more »