I have mapped occurrence data for various plant species in the northeast US and adj Canada. I am interested in clustering among all the species. ANN and Ripley's K indicate clustering. How do I geovisualize the clusters based on location only as I do not have a value field? There is no rendering tool or output feature class option for these tools. Yet in GIS Analysis Vol 2 p 149, 151 examples show mapped cluster areas (businesses, burglaries) based on location alone. Am I missing something? Thanks.