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  3. Scalable Data Processing in R

Exercise

Compare read.delim() and read.delim.raw()

When processing a sequence of contiguous chunks of data on a hard drive, iotools can turn a raw object into a data.frame or matrix while - at the same time - retrieving the next chunk of data. These optimizations allow iotools to quickly process very large files.

Instructions

100 XP
  • Time the reading of a file using read.delim() five times.
  • Time the reading of a file using read.delim.raw() five times.