Geometries and attributes are aggregated.
Source: https://gist.github.com/rCarto/bb47aff0a02e808d2bf64f2d8c5db7d8#file-st_aggregate-r
Usage
st_aggregate(x, by, var, fun)
Arguments
- x
sf object
- by
name of the variable of grouping elements
- var
name(s) of the variable(s) to aggregate
- fun
function(s) to compute the summary statistics
Value
An sf object is returned
Examples
if (FALSE) { # \dontrun{
library(sf)
nc <- sf::st_read(system.file("shape/nc.shp", package="sf"))
nc$dummy <- "ZONE_A"
nc$dummy[25:50] <- "ZONE_B"
nc$dummy[51:100] <- "ZONE_C"
r <- st_aggregate(nc, "dummy", c("BIR74", "NWBIR74"), c("mean", "median"))
plot(nc)
plot(r)
} # }