Learning to use a data analysis tool well takes significant effort, so people tend to continue using the tool they learned in college for much of their careers. As a result, the software used by professors and their students is … Continue reading →
Tag: R
On Unpublished Software
sciseekclaimtoken-4f343317d3d60 I ran across this post at The Tree of Life entitled ‘Interesting new metagenomics paper w/ one big big big caveat – critical software not available”. The long and short of it? Paper appears in Science, has fancy new methodology, lacks the software for someone else to use their methodology. Blog author understandably annoyed. But I […]
R Appears Among Top 20 Programming Languages
Speaking of R… On the 16th, TIOBE Software released the Tiobe Index of the most popular programming languages. For the first time ever, R is in the Top 20. The top spots are, no surprise, occupied by Java and C respectively. More after the jump. The way this index is assembled is…interesting. The full way […]
Random seeds
A footnote toward Rick Wilkin’s recent article “How to Lie with a Simulation”. (Sit in front of a laptop w/o SAS; have to port all SAS/IML codes into R)
Generated 10 seeds randomly to run Stochastic simulation of Buffon’s needle experiment by R…
10 toughest interview questions for R developers (1)
I recently discovered 10 questions most daunting in R development, and I am trying to find the answers below.
1. Data structure — How many data structures R has? How do you build a binary search tree in R?
2. Sorting — How many sorting algorithms…
Those most productive R developers
The number of R packages on CRAN is 3,483 on 2011-12-12. The growth of R package in the past years can be fitted by a quadratic regression perfectly.
I am always interested in who are maintaining those packages. Then I wrote an R script to extract …
Clearning up the sqldf confusion
Apparently I have issues with my reading comprehension and with Textmate (initially) when it comes to using the sqldf package. G. pointed out in the previous comments, I could have just used options(gsubfn.engine = “R”) instead of going through the trouble of installing the tcltk binaries. If you’ve got a happy distribution of R that […]
FBS Coaches Avg. Salary
Of course, a few days before I leave for a much needed vacation, USA Today released their updated NCAA coaching salary database. For sports junkies, there’s an unlimited number of analysis and visualizations that can be done on the data. I took a quick break from packing to condense the data to a csv and […]