Todo

[joemarlo]

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

[joemarlo]

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