combust/mleap

Support multiple input columns for Bucketizer and StringIndexer as with spark.

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#549 opened on Aug 21, 2019

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 (0 comments) (0 reactions) (0 assignees)Scala (312 forks)batch import
enhancementhelp wanted

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Description

Currently transformers in spark such as bucketizer and stringindexer have multiple-input support, maybe mleap should keep up with it.

Contributor guide

Research direction
Examine Spark's implementation of multi column support for Bucketizer and StringIndexer, then identify the corresponding transformers in MLeap and modify them to support multiple input columns.
Tech stack
scalaspark
Domain
machine learningdata
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
ScalaGit
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70