Research: does including slope improve list_soils results?

[DerekCaelin]

We noticed that the list_soils function retrieves a different ranked soils list than rank_soils. As it turns out, ranked_soils uses slope (either the user entered slope, or slope from a secondary source as a fallback).

This begs the question, does including secondary slope data improve list_soils?

Acceptance Criteria

• Using our training data sheet, compare the results between including and not including slope data
• Make recommendations for changing list_soils and rank_soils on the basis of research