[SYSTEMDS-555] Language extensions for frames

• Type: Task
• Status: Resolved
• Priority: Major
• Resolution: Done
• Fix Version/s: SystemML 0.10
• Component/s: Compiler, Parser, Runtime
• Epic Link: Frame data type support
• Assignee: Matthias Boehm
• Reporter: Matthias Boehm
• Created: 09/Mar/16 06:04
• Updated: 21/May/16 06:00
• Resolved: 19/Apr/16 16:55

Description

Full data frame support requires some modifications of existing builtin functions, especially transform. This task covers these modifications as well as related cleanups to allow seamless usage of transform in JMLC scoring.

1) Read parameter 'schema' (* for all strings, or list of value types; if unspecified * for backwards compatibility).
2) Transform parameter 'spec' as string instead of 'transformSpec' as filename.
3) Transform recode maps inputs and outputs as frames.
4) Split transform and transformapply into separate functions due to different number of outputs (alternatively: always return the recodemaps, even if already passed in).
5) Transform parameter 'spec' for existing transform apply to allow different specifications with common recode maps.

Issue Links

• is related to: SYSTEMDS-572 Update transform documentation