Reputation: 306
My data.frame
contains two numeric
variables called g_lat
and g_long
that represent the geographic coordinate of the
observations. It looks like this:
variable 1 | g_lat | g_long |
---|---|---|
320000 | -34.23000 | 19.42833 |
600000 | 16.10000 | -22.80000 |
How can I convert this data.frame
in a sf
-object, where the variables g_lat;g_long
are treated as the geometry column list?
I tried with the st_as_sf
function, but an error occurs: only 0's may be mixed with negative subscripts
Thank you very much for your time
Upvotes: 3
Views: 6597
Reputation: 2906
You can specify which columns are the coordinates:
df <- data.frame(v1 = c(320000, 600000),
g_lat = c(-34.23000, 16.10000),
g_long = c(19.42833, -22.80000))
df_coord <- st_as_sf(df, coords = c(2:3))
Upvotes: 2