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JosiahParry / sfdep

A tidy interface for spatial dependence
https://sfdep.josiahparry.com/
GNU General Public License v3.0
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Space time representation s3 class #18

Closed JosiahParry closed 2 years ago

JosiahParry commented 2 years ago

There is an older implementation of this from edzer pebesma

https://cran.r-project.org/web/packages/spacetime/vignettes/jss816.pdf

I think a long representation of time and space is best with ancillary geometry table.

Implementation consideration:

Attribute of all used geometry as an sf object with a column for geometry identifier and the respective geometry. The geometry attribute should contain neighbors and weights (potentially stored as a listed object for spdep compatibility)

The main table contains a column for the geometry identifier, the time period, and any other values that would be desired.

All time periods must have have all regions.

If there are 2 time periods with 10 regions we would have 2*10 = 20 observation in our table.

Users can then create any lisas they'd like and then summarize with Mann Kendall to identify changing temporal patterns.

JosiahParry commented 2 years ago

Neighbors and weights should be created before hand with the provided geometry