Get minimum threshold of distance that makes sure each observation has at least one neighbor
gda_min_distthreshold(geoda_obj, is_arc = FALSE, is_mile = TRUE)
A numeric value of minimum threshold of distance
An instance of geoda-class
(optional) FALSE (default) or TRUE, compute arc distance between two observations
(optional) TRUE (default) or FALSE, if 'is_arc' option is TRUE, then 'is_mile' will set distance unit to 'mile' or 'km'.