Select confounders to minimize missing values — minimize

Given a dataframe and a list of adjustment sets identified with the adjustmentSets function, find the set that minimizes the number of missing values for the confounders.

minimize_missings(dat, meta, adjustment_sets, by_var)

Arguments

dat: A dataframe containing the variables of interest. A dataframe.
meta: A dataframe containing the metadata. A dataframe.
adjustment_sets: A list of adjustment sets. A character vector.
by_var: The variable name to group by. A string.

Value

An integer corresponding to the index of the adjustment set that minimizes the number of missing values.