HI,
I am working on a data set with multiple collections of mosquitoes at
sampling sites. Each row represents a collection of individual samples
with coordinates for each collection.
... X, Y,...
1 36.435 30.118
2 36.435 30.118
3 36.435 30.118
4 35.329 29.657
5 35.329 29.657
6 36.431 30.111
7 36.431 30.111
8 35.421 29.797
9 35.421 29.797
10 35.421 29.797
Unfortunately, there is no 'site' entry. I would like to add a column of
'site' based on the coordinates of samples so that samples from the same
sites have the same site ID like S1, S2,....
How to do this in R way? Thanks.
Weidong Gu,
Department of Medicine
University of Alabama, Birmingham
1900 University Blvd., Birmingham, Alabama 35294
Email: [EMAIL PROTECTED]
PH: (205)-975-9053
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