Version 0.1.2

library(sfdep)

While not too far from the initial CRAN release of sfdep, this release represents a some rather sizeable changes to the package.

This can be broken down into three categories:

• spatio-temporal analysis
• measures of colocation
• and bug fixes

Colocation Analysis

This is extremely exciting as this is the first open source implementation of Colocation Quotients that I am aware of.

• global_colocation()
• pairwise_colocation()
• local_colocation()

Spacetime

This is a very big addition to sfdep.

• spacetime(), new_spacetime(), validate_spacetime():
  • Creating spacetime objects
• activate(), active():
  • changing spacetime context and determining active context
• as_sf(), as_spacetime():
  • casting between spacetime and sf objects
• is_spacetime():
  • determine if an object is a spacetime object
• is_spacetime_cube():
  • determine if a spacetime object is a spatio-temporal full grid aka spacetime cube
• complete_spacetime_cube():
  • if a spatio-temporal sparse grid, add rows to make a spatio-temporal full grid (spacetime cube)
• set_col(), set_nbs(), set_wts():
  • add columns from geometry contexst to data context
• emerging_hotspot_analysis():
  • conduct emerging hotspot analysis
• spt_update():
  • update times and locations attributes of a spacetime object

General

• include_self()
• remove_self()
• Fixes a bug in local_g_perm() and local_gstar_perm() which would return the G value before being converted into a z-score