Beginning Apache Spark 2 by Hien Luu
Author:Hien Luu
Language: eng
Format: epub
ISBN: 9781484235799
Publisher: Apress
Name
Description
rank
Returns the rank or order of rows within a frame based on some sorting order.
dense_rank
Similar to rank, but leaves no gaps in the ranks when there are ties.
percent_rank
Returns the relative rank of rows within a frame.
ntile(n)
Returns the ntile group ID in an ordered window partition. For example, if n is 4, the first quarter of the rows will get a value of 1, the second quarter of rows will get a value of 2, and so on.
row_number
Returns a sequential number starting with 1 with a frame.
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| Coding Theory | Localization |
| Logic | Object-Oriented Design |
| Performance Optimization | Quality Control |
| Reengineering | Robohelp |
| Software Development | Software Reuse |
| Structured Design | Testing |
| Tools | UML |
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