check_key {geodimension} | R Documentation |
Check key
Description
Check if the specified set of attributes can be the key of the table.
Usage
check_key(table, key = NULL)
Arguments
table |
A |
key |
A vector, attributes that compose the key. |
Details
The table can be a data table or a vector layer.
Value
A boolean.
See Also
Other geolevel definition functions:
add_geometry()
,
complete_point_geometry()
,
coordinates_to_geometry()
,
geolevel()
,
get_empty_geometry_instances()
,
get_geometry()
Examples
layer_us_county <- get_level_layer(gd_us, "county")
is_key <- check_key(layer_us_county, key = c("statefp", "name"))
[Package geodimension version 2.0.0 Index]