Expands endpoint datatable for statistical analysis based on specified grouping columns. Creates specifications for expansion and performs the expansion to prepare the data for statistical functions.
Usage
expand_ep_for_stats(
ep,
grouping_cols,
analysis_data_container,
data_col,
id_col,
col_prefix
)
Arguments
- ep
A
data.table
containing endpoint data to be expanded.- grouping_cols
A character vector specifying the columns used for grouping in the expansion.
- analysis_data_container
data.table containing the analysis data.
- data_col
The name of the column in
ep
that contains the ADaM dataset.- id_col
The name of the column in
ep
that contains the unique identifier for the strata.- col_prefix
A prefix for the resulting columns, defaults to "stat".