keep_all_pretreatment_subset {ptetools} | R Documentation |
Keep All Pre-Treatment Subset
Description
A function that takes an original data set and keeps all
data for all groups that are not-yet-treated by period tp
as well
as for group g
.
In particular, this keeps more data than functions like two_by_two
subset that use a fixed base period.
A main use case for this function is the interactive fixed effects approach proposed in Callaway and Tsyawo (2023).
Usage
keep_all_pretreatment_subset(data, g, tp, ...)
Arguments
data |
the full dataset |
g |
the current group |
tp |
the current time period |
... |
additional arguments |
Value
list that contains the following elements:
-
gt_data
: agt_data_frame
object that contains the correct subset of data -
n1
: the number of observations in this subset -
disidx
: a vector of the correct ids for this subset
[Package ptetools version 1.0.0 Index]