[MADLIB-890] RF predict with 'prob' do not sum to 1

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Unresolved
• Assignee: Xixuan (Aaron) Feng
• Reporter: Xixuan (Aaron) Feng
• Created: 29/May/15 02:09
• Updated: 29/May/15 02:24

Description

The probabilities sum to (1 / #trees) when predicting RF with option 'prob'.

Debugging:
this is introduced as a regression bug in v1.7.1 because of changes in discrete_distribution_agg. A normalization step was added.