rquery and rqdatatable are new R packages for data wrangling; either at scale (in databases, or big data systems such as Apache Spark), or in-memory. The packages speed up both execution (through optimizations) and development (though a good mental model and up-front error checking) for data wrangling tasks. Win-Vector LLC‘s […]
I (Nina Zumel) will be speaking at the Women who Code Silicon Valley meetup on Thursday, October 27. The talk is called Improving Prediction using Nested Models and Simulated Out-of-Sample Data. In this talk I will discuss nested predictive models. These are models that predict an outcome or dependent variable […]
Win-Vector LLC will be presenting on statistically validating models using R and data science at: Strata+Hadoop World “R Day” Tutorial 9:00am–5:00pm Tuesday, March 29 2016, San Jose, California. ODSC San Francisco Meetup, 6:30pm-9:00pm Thursday, March 31, 2016, San Francisco, California. We will share code and examples. Registration required (and Strata […]
Win-Vector LLC‘s John Mount will be speaking at Strata + Hadoop World 2014 this month. Please attend my panel on data inventories (a key driver of data science project success) and attend my “Practical Data Science with R” book office hour (get your book signed!). Thank you both O’Reilly Media, […]