hey @bcongelio looking at this section in the book (2.5.3) - is the additional filter to exclude NAs on the down necessary since you're already asking for a specific down?
Good find. The is.na(down) is not needed since down == 3 is present. Adding the 'editorial changes' label and will complete this during the page proof process.
From an nflverse Discord comment:
hey @bcongelio looking at this section in the book (2.5.3) - is the additional filter to exclude NAs on the down necessary since you're already asking for a specific down?