Number of observations used in
This S3 method allows you to retrieve either the number of
observations or number of entities in the data used to fit
# S3 method for wbm nobs(object, entities = TRUE, ...)
A fitted model object.
nobsreturn the number of entities in the panel or the number of rows in the
panel_dataframe? Default is TRUE, returning the number of entities.
Further arguments to be passed to methods.