Re-Share: Vtreat Data Preparation Documentation and Video – Win-Vector Blog¶ Metadata¶ Author: Full Title: Re-Share: Vtreat Data Preparation Documentation and Video – Win-Vector Blog Category: #Type/Highlight/Article URL: http://www.win-vector.com/blog/2020/03/re-share-vtreat-data-preparation-documentation-and-video/ Highlights¶ vtreat is a system for preparing messy real world data for predictive modeling tasks (classification, regression, and so on). In particular it is very good at re-coding high-cardinality string-valued (or categorical) variables for later use.