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Re: Re: Zipcode Proximity script

by paulbort (Hermit)
on Apr 01, 2003 at 15:52 UTC ( #247265=note: print w/replies, xml ) Need Help??

in reply to Re: Zipcode Proximity script
in thread Zipcode Proximity script

Won't work. Check out how close 44030 (Conneaut, OH) is to 14775 (Ripley, NY). But there's a whole state in the way! (PA, if you're curious.)
Spring: Forces, Coiled Again!

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Re: Re: Re: Zipcode Proximity script
by shotgunefx (Parson) on Apr 01, 2003 at 16:29 UTC
    It's simple, add the non-bordering states that have borders with N miles to that's states border-states.


    "To be civilized is to deny one's nature."
      At which point you're into a lot more complexity. If you're going to pre-generate that much data, just build a data set for each state that includes all zips within the greatest possible search radius, and start each search with the right data set.
      Spring: Forces, Coiled Again!
        For the data set I was working with it really was no complexity at all. It certainly isn't the biggest reduction of the data but it's a fairly quick reduction to do. You could certainly partition it better but this was a quick and dirty way to do it that worked for my application.


        "To be civilized is to deny one's nature."

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