QA: What is the .xdf file format?

The .xdf format is a binary file format that: 
  • Stores data in blocks for efficient reading of arbitrary columns and contiguous rows
  • Contains associated metadata, such as variable names, descriptions, and data storage types
  • Supports a richer set of data storage types than R (eight types of integers, two types of floating point numbers
  • Writes data blocks of rows so that data processing can be optimized
  • Processes data in chunks (groups of blocks)
  • Optimizes the block sizes depends on individual computer bandwidth for I/O
  • Contains meta information at the end of the .xdf file rather than the beginning for easy updating
Note This is a "FAST PUBLISH" article created directly from within the Microsoft support organization. The information contained herein is provided as-is in response to emerging issues. As a result of the speed in making it available, the materials may include typographical errors and may be revised at any time without notice. See Terms of Use for other considerations.

Article ID: 3104260 - Last Review: 10/29/2015 08:15:00 - Revision: 1.0

Revolution Analytics

  • KB3104260