The “IV Jornadas de usuarios de R” were held in Barcelona on November 15th and 16th of 2012. From the Barcelona’s Users Group (RugBcn) we want to highlight two workshops given by some of the RugBcn’s organizers :
- Ggplot2 and ggmaps by Lluís Ramon, Andreu Valls and Roger Borràs (in spanish).
- Introduction to reference classes by Aleix Ruiz de Villa (in english). Reference classes adopt the object oriented programming framework of other programming languages, such as C++, Python, Java, … They are more ‘formal’ than the standard class types in R (S3 and S4). On the other hand, the main advantages are: better organized code (very useful for large projects) and functions with reference class objects do not copy such objects, bringing more efficiency in memory usage.
Aleix Ruiz de Villa, RugBcn