Big data in R - Columbia University
Big data in R
EPIC 2015
Big Data: the new 'The Future'
In which Forbes magazine finds common ground with Nancy Krieger (for the first time ever?), by arguing the need for theory-driven analysis
This future brings money (?)
? NIH recently (2012) created the BD2K initiative to advance understanding of disease through 'big data', whatever that means
The V's of `Big Data'
? Volume
? Tall data ? Wide data
? Variety
? Secondary data
? Velocity
? Real-time data
What is Big? (for this lecture)
? When R doesn't work for you because you have too much data
? i.e. High volume, maybe due to the variety of secondary sources
? What gets more difficult when data is big?
? The data may not load into memory ? Analyzing the data may take a long time ? Visualizations get messy ? Etc.,
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