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发帖数: 5352 | 1 ☆─────────────────────────────────────☆
winterwawa (wawa) 于 (Thu Jan 4 09:46:15 2007) 提到:
Data set A: company name, company zip code, zipcode centroides (x, y
coordinates, like longitude and latitude degrees), 50 records
Data set B: all US zip code (including the 50 zipcodes where the companies
are located in A), zipcode centroides (x, y coordinates, like longitude and
latitude degrees. 40000 records
Need to calculate the distance between the company and each US zip code,
meaning total 50 |
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