I have a data set of the midpoints of counties based on latitude and
longitude coordinates. With this data set I want to create a matrix that
lists the distances between counties. However, to use latitude and longitude
data, I need an algorithm that will correct for the longitude distances.
Does anyone know of an algorithm that can do this?
-jacinda barbehenn
USACERL/UI GISLAB
mountz@gis.uiuc.edu