HI.
I have a set of disease outbreak data. Each observation have a location (spatial coordinates) and a start date. 
Outbreaks that occur in the same location within a two week periods have to be merged. 
Basically I need to delete duplicates that have same spatial coordinated and start dates comprised in a two weeks range. I am ok with the first bit (coordinates), but It is the date range that I am not sure how to define. I thought about creating a dummy variable for observations within a date range, but those might have different locations. Any help would be greatly appreciated.
Thanks
B
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