Articles - dplyr

To add into a data frame, the cumulative sum of a variable by groups, the syntax is as follow using the dplyr package and the iris demo data set:

Code R :  library(dplyr) iris... [Read more]

This talk introduces implyr, a new dplyr backend for Apache Impala.

Impala is a massively parallel processing query engine that enables low-latency SQL queries on data stored in the Hadoop... [Read more]