Adds a new column classifying nodal status as 'N0', 'N1PAN', or 'N1pelvic' based on pathological nodes present and Para-Aortic lymph node status at diagnosis.
Examples
if (FALSE) { # \dontrun{
emii_data <- load_embrace_ii()
result <- emii_add_nodal_classification(emii_data)
} # }