Maintenance

[adamrauh]

A few things that need to be cleaned up as I've been thinking about the package/writing things up. Most of these are relatively minor, but non-trivial updates that should be done.

• Fix PlaceboTest to work with analytical standard errors.
• optimizations to PlaceboTest for bootstraps
• Exact matching should handle time-variant variables (Tabling this for now, will be integrated when caliper functionality is fully done)
• exact matching should handle multiple variables (Tabling this for now, will be integrated when caliper functionality is fully done)
• Refactor code
• Ensure that the results of DisplayTreatment are relatively normal/simple ggplot2 objects and can be manipulated with standard syntax. Right now the function seems complicated
• DisplayTreatment produces an object that is "backward". Fix it.
• balance_scatter function needs to be updated with the expectations of dimensions of the new get_covariate_balance results.
• Simplify the arguments of balance_scatter. No need to take an unrefined matched set, when we can just calculate it using get_covariate_balance from a refined set.
• Fix ART in moderator bug over in Estimating ART w/ a moderator #92
• Standardize diagnostic function names/UIs. Utility/diagnostic functions should have similar formats/names. Eg. PlaceboTest and get_covariate_balance should follow similar schemes. Everything should take similar arguments and produce similar objects.
• Incorporate restrict.control.period option from big_data_checks
• update documentation/code results with resolution of ATE discussion
• (optional) include an additional covariate in the included Acemoglu data. This might be helpful for documenting some features
• implement the correct ATC
• remove continuous matching remnants for stable release
• Fix summary spacing/print out issues
• Fix Refactor internal usage of formula objects + parse_and_prep #68
• Fix Possible bug related to placebo tests #110