create list object of population data for easy data processing
popcall(
response.formula,
compl.var,
treat.var,
pop.data,
weights = NULL,
cluster = NULL,
ID = NULL,
patt = TRUE
)list of processed dataset
formula for response equation of binary outcome variable and covariates
string for complier variable
string for treatment variable
data.frame of experimental variable
observation weights
clustering variable
identifier variable
logical for patt, subsetting population treated observations