Todo

[joemarlo]

• [ ] Write vignette @gperrett @joemarlo
• [x] Remove overlapping functions from thinkCausal repo by Wednesday 10/13 @gperrett
• [x] Fix issue in plot_variable_importance with variables getting drop from tree @gperrett
• [x] Review default plot subtitles @gperrett @joemarlo
• [x] Review API and ensure is consistent @joemarlo
• [x] Review code coverage @joemarlo
• [x] Manually review accuracy of each function output @gperrett @joemarlo
• [x] Review all function manuals @joemarlo

[joemarlo]

• [x] Review notes from R CMD check (no visible binding...)