Oracle Machine Learning for R provides the ability to create ordered or unordered ore.frame objects.

The following topics describe this feature.

• About Ordering in ore.frame Objects
  R objects such as vector and data.frame have an implicit ordering of their elements.
• Global Options Related to Ordering
  OML4R has options that relate to the ordering of an ore.frame object.
• Ordering Using Keys
  You can use the primary key of a database table to order an ore.frame object.
• Ordering Using Row Names
  You can use row names to order an ore.frame object.
• Using Ordered Frames
  This example shows the result of merging two ordered ore.frame objects and two unordered ore.frame objects.