Aggregate shapes in a simple features dataframe. This is a
convenience wrapper for ms_dissolve.
dissolve(SFDF, field = NULL, sum_fields = NULL, copy_fields = NULL, ...)Arguments
- SFDF
Object of class simple features data frame.
- field
Name of the field to dissolve on.
- sum_fields
Names of fields to sum.
- copy_fields
Names of fields to copy. The first instance of each field will be copied to the aggregated feature
- ...
arguments passed to
rmapshaper::ms_dissolve()
Value
A simple features dataframe with aggregated shapes.
Examples
# \donttest{
regions <- dissolve(SimpleCountries, field = "UN_region", sum_fields = "area")
plot(regions)
dplyr::glimpse(regions)
#> Rows: 6
#> Columns: 3
#> $ area <int> 0, 0, 0, 0, 0, 0
#> $ UN_region <chr> "Asia", "Americas", "Africa", "Europe", "Oceania", "Antarcti…
#> $ geometry <MULTIPOLYGON [°]> MULTIPOLYGON (((117.907 4.1..., MULTIPOLYGON (((-68.44861 -.…
# }