[R-sig-Geo] mapping of administrative areas to postal codes

[Richa Agarwal]

Thanks guys!!
I was able to download the .json file using the .bash script at
https://gist.github.com/scw/f761b6c5fe2508eeb94c

I have demand data by zip code. I would like to figure out how I can map
that data on this file. I understand that since the shape file has only 5
regions I might have to aggregate all my postal code data to 5 regions and
then plot. However, I am not sure what the mapping is from postal cadets to
these regions.



On Mon, Jan 25, 2016 at 4:20 PM, Shaun Walbridge <SWalbridge at esri.com>
wrote:

> You can extract the data fairly easily using the REST API to pull out
> what you want. For example, this URL contains the regions:
>
> http://www.arcgis.com/home/item.html?id=0dd32a9c77b8400ebf60261571b9134b
>
> That data can be downloaded directly in the browser, or using something
> like cURL. Note that the data is provided under these terms of use:
>
> https://ref.data.gov.sg/common/terms.aspx
>
> The REST API can take a little time to become familiar with. Here's a
> bash script which downloads both the regions and detailed admin
> areas using cURL, and converts them to Shapefiles with OGR:
>
> https://gist.github.com/scw/f761b6c5fe2508eeb94c
>
> Cheers,
> Shaun
>
> -----Original Message-----
> From: R-sig-Geo [mailto:r-sig-geo-bounces at r-project.org] On Behalf Of
> Alex Mandel
> Sent: Monday, January 25, 2016 6:30 PM
> To: Richa Agarwal; Roger.Bivand at nhh.no
> Cc: R-mailing list
> Subject: Re: [R-sig-Geo] mapping of administrative areas to postal codes
>
> GADM isn't always as current as you might hope (something we're working on
> with interns).
>
> For Singapore we have an update but I don't think it's released yet.
> The source however is
>
> https://www.ura.gov.sg/uramaps/?config=config_preopen.xml&preopen=Planning%20Boundaries
> It's a little tricky to extract the data.
>
> FYI, US Post Codes from the Census do not 100% match the Postal Service
> which does not release their boundaries. Generally in most countries you
> have buy access to postal code data.
>
>
> I'll check up on what needs to be done to push the newer version of GADM
> for Singapore to the public service.
>
> Thanks,
> Alex
>
> On 01/25/2016 12:43 PM, Richa Agarwal wrote:
> > Thanks very much Roger.
> >
> > Guys, Any insights on how can we map postal code in a country to the
> > administrative areas (for which shape files are available at GADM).
> > Example: For Singapore for level 1 areas GADM has 5 regions however
> > when I plot them they don't necessarily match with 5 regions explained
> > on say Wikipedia
> >
> > https://en.wikipedia.org/wiki/Administrative_divisions_of_Singapore
> >
> >
> >
> > On Mon, Jan 25, 2016 at 11:50 AM, Roger Bivand <Roger.Bivand at nhh.no>
> wrote:
> >
> >> On Mon, 25 Jan 2016, Richa Agarwal wrote:
> >>
> >> Hi Guys,
> >>>
> >>> Is there a mapping of administrative areas (as available in shape
> >>> files at the GADM website) to postal codes by country? Also is there
> >>> a source for more detailed shapefiles. Example for Singapore the
> >>> detail available on GADM is just level 1.
> >>>
> >>
> >> In the US, five-digit zip codes are part of the US Census boundary
> >> system, and - as public boundaries - are open for download.
> >>
> >> In most other countries, the boundaries of postal code areas are not
> >> public data, even where the postal service is public, and are usually
> >> only available at substantial cost, and often without permission to
> >> publish maps based on the boundaries.
> >>
> >> In Norway, a Meteorological Office programmer crowd-sourced point
> >> locations to provide a way of offering weather forecast look-up based
> >> on postcode - but those are not boundaries, and indeed are just the
> >> GPS readings of volunteered data.
> >>
> >> Even using commercial APIs to give address points probably will not
> help.
> >>
> >> Roger
> >>
> >>
> >>> http://www.gadm.org/country
> >>>
> >>> Thanks
> >>> Richa
> >>>
> >>>         [[alternative HTML version deleted]]
> >>>
> >>> _______________________________________________
> >>> R-sig-Geo mailing list
> >>> R-sig-Geo at r-project.org
> >>> https://stat.ethz.ch/mailman/listinfo/r-sig-geo
> >>>
> >>>
> >> --
> >> Roger Bivand
> >> Department of Economics, Norwegian School of Economics, Helleveien
> >> 30, N-5045 Bergen, Norway.
> >> voice: +47 55 95 93 55; fax +47 55 95 91 00
> >> e-mail: Roger.Bivand at nhh.no
> >> http://orcid.org/0000-0003-2392-6140
> >> https://scholar.google.no/citations?user=AWeghB0AAAAJ&hl=en
> >> http://depsy.org/person/434412
> >>
> >
> >       [[alternative HTML version deleted]]
> >
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>
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