By default, a list of length(h3_address). Each list element
contains a list of length(ring_size + 1). Each of those lists
contains a character vector of H3 cell indices belonging to that step away
from the input cell.
Arguments
h3_address
Character; 15-character cell index generated by H3.
ring_size
Character; number of steps away from the central cell.
Defaults to 1.
simple
Logical; whether to return a vector of outputs or a data frame
containing both inputs and outputs.