smooth_shapefile: Smooth a shapefile by nearest neighbourhood
In HughParsonage/ASGS: Lazily Load Australian Statistical Geography Shapefiles

smooth_shapefile

R Documentation

Smooth a shapefile by nearest neighbourhood

Given a shapefile and a data.frame with a value for each polygon, return a smoothed value of the values.

smooth_shapefile(
  shapefile,
  data_by_id,
  id,
  var2smooth,
  k = 10,
  coalesce.to = 0
)

`shapefile`	A shapefile (as from this package) containing an `as.data.frame` method.
`data_by_id`	A `data.frame` containing a value for each polygon within `shapefile`.
`id`	The key of `data_by_id` on which the shapefile may be merged with `shapefile`.
`var2smooth`	A length-one character vector indicating which variable in `data_by_id` to smooth.
`k`	Passed to `knearneigh`.
`coalesce.to`	A single value. If there are any missing values in `data_by_id[[id]]`, what should these be imputed as? Must have the same storage mode as `data_by_id[[id]]`.