If you like statistics, data analysis, and visual graphs, the DC R Users group delivered on Thursday, February 9th. They met at LivingSocial’s Chinatown location to cover a series of short presentations centering around R programming language use cases and resources.
The following topics were covered:
- Bayesian estimation with R and JAGS – Grant Cavanaugh
- arules package, apriori algorithm (Market Basket Analysis) – John Dennison
- Example of using R to query the google maps API to create a color-coded map of road and public transit times – James Leopore
- MCMC with Gibbs Sampling – Katya Vasilaky
- Webscraping with R, RCurl – Robert Vesco
- Git your Version Control on Using R and RStudio – Brian Danielak
- R’s spatial tools – Lee De Cola
To start with, I was impressed by the large community. Approximately 60+ attended the event. The immediate takeaway I had as a non-R user, was “get RStudio IDE and try things out!”. Additionally, the webscraping talk covered XPATH within R, and using Firebug + FireXPATH to help figure out what you want to scrape, before writing R code. XPATH, as the speaker put it for us laymen types, is the “SQL for HTML documents”. The Gibbs Sampling talk touched on machine learning through bootstrap aggregating (bagging).
If you’re a data scientist, a statistician, or curious about data analysis, check out this group. They like new comers.