[Talk-GB] Codepoint duplicates

2011-03-20 Thread Matt Williams
I've started work using Codepoint Open to perform completeness studies of OSM postcode data. My plan is to do a rendering like [1] based on the codepoint data but colour each cell according to whether there's any matching OSM postcodes. The problem I have is that there seems to be a large number o

Re: [Talk-GB] Codepoint duplicates

2011-03-20 Thread Tom Hughes
On 20/03/11 22:20, Matt Williams wrote: Ahh, looking at the map [2] it seems that they are all located at the Royal Mail distribution office. My question still stands though: are these just surplus postcodes or some error? There are still other cases of duplicates though like can be seen nearby

Re: [Talk-GB] Codepoint duplicates

2011-03-21 Thread Andy Allan
On Sun, Mar 20, 2011 at 11:26 PM, Tom Hughes wrote: > On 20/03/11 22:20, Matt Williams wrote: > >> Ahh, looking at the map [2] it seems that they are all located at the >> Royal Mail distribution office. My question still stands though: are >> these just surplus postcodes or some error? There are

Re: [Talk-GB] Codepoint duplicates

2011-03-21 Thread Andy Mabbett
On 21 March 2011 12:05, Andy Allan wrote: [...] > A cautionary tale about inferring too much from postcodes - the > positions given are the position of where the mail should be delivered > to, and sometimes doesn't correspond to where you would expect given > the name and the rest of address. >