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GeoPacks are structured to have one or more levels of geographical data.=
When there are multiple levels, the data will be structured in a logical h=
ierarchy. Each level of the hierarchy will contain Geographical Lab=
els of different formats and a Geographical Field=
containing a Point (and sometimes a Polygon). The pack may also have
=20
See GeoPack Setup for = more information.
If we look at a simplified version of the Australian Postcode GeoPack it= contains the following three level hierarchy:
Some levels of this hierarchy may have different ways to identify the ge= ography. For example, the State level can be identified by its full name, o= r using a three letter code. In this case, there are multiple Geogr= aphical Labels for the State field; State Label and State Code. An= example of possible label fields for this pack would be:
State Label |
State Code |
LGA Code |
LGA Label |
Postcode |
---|---|---|---|---|
Victoria |
VIC |
LGA23430 |
Kingston |
3195 |
Victoria |
VIC |
LGA23430 |
Kingston |
3196 |
Victoria |
VIC |
LGA25900 |
Port Phillip |
3205 |
These label fields are used to link the pack data to your source data, a= nd as such you must select the label that matches the formatting in your so= urce database. For example, if you're linking on State field and your data = is stored as VIC, you would link on the State Code= field. If your data is stored as Victoria, you w= ould link on the State Label field.
See GeoPack Use for more= information.
See GeoPack Use for more= information.
If we look at the same simplified Australian Postcode GeoPack as above, = it contains various different fields of census information. Most packs cont= ain many demographic fields, but this simplified example contains two; Tota= l Population and Median Age:
Postcode |
Total Population |
Median Age |
---|---|---|
3195 |
34102 |
39 |
3196 |
23590 |
39 |
3205 |
9317 |
37 |
The Demographic Metrics are designed to provide additio= nal levels of context to your mapping, providing you with the ability to co= mpare your data with census information for richer analysis.