two_by_two_subset: two_by_two_subset

In bcallaway11/pte: Panel Treatment Effects

two_by_two_subset

Description

A function for computing a 2x2 subset of original data. This is the subset with post treatment periods separately for the treated group and comparison group and pre-treatment periods in the period immediately before the treated group became treated.

Usage

two_by_two_subset(
  data,
  g,
  tp,
  control_group = "notyettreated",
  anticipation = 0,
  base_period = "varying",
  ...
)

Arguments

data	the full dataset
g	the current group
tp	the current time period
control_group	whether to use "notyettreated" (default) or "nevertreated"
anticipation	the number of periods of anticipation (i.e., number of periods before the treatment happens where the treatment can "already" affect the outcome)
base_period	The type of base period to use. This only affects the numeric value of results in pre-treatment periods. Results in post-treatment periods are not affected by this choice. The default is "varying", where the base period will "back up" to the immediately preceding period in pre-treatment periods. The other option is "universal" where the base period is fixed in pre-treatment periods to be the period right before the treatment starts. "Universal" is commonly used in difference-in-differences applications, but can be unnatural for other identification strategies.
...	extra arguments to get the subset correct

Value

list that contains correct subset of data, n1 number of observations in this subset, and disidx a vector of the correct ids for this subset.

bcallaway11/pte documentation built on Jan. 11, 2025, 2:30 a.m.