@rprincey wrote: I unfortunately don't know. When I first put the data in map (tableau), it all showed up in Antartica. Then I re-ran it and it worked. The one thing that may have caused the problem was that, in a data step, I originally copied the lat/long field to new variables for naming sake: latitude=x; longitude=y; Maybe that caused the issue?
Very likely, longitude is the line that runs north/south on a map and the value is used for the direction east/west: i.e. X coordinate in mapping by default. So you transposed the values from east/west to north south. You should have had a largish number of points not map at all as the values from -90 to -180 wouldn't have a usable coordinate pair for mapping.
If you look in the Sashelp.zipcode file you'll notice that the variable named X is labeled Longitude.
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