As Hasan suggested, much more information is needed. It would be very helpful
to know the class of nyc_ct_geo, and how it was created. It is possibly an sf
object from the print output.
>From this, assuming that it is an sf object, the geometries are polygons, not
>points, so need to be converted to text, best WKT (well-known text) to write
>to CSV. It is then best to use the appropriate function from sf with a CSV
>driver - minimal example:
library(sf)
nc <- st_read(system.file("gpkg/nc.gpkg", package="sf"))
tf <- tempfile(fileext=".csv")
st_write(nc_geom, tf, driver="CSV", layer_options=c("GEOMETRY=AS_WKT"))
file.show(tf)
With more than 2000 polygon objects in your case, this is hardly a sensible way
to write geometries to file, and depends on the person receiving the file
having software that can convert WKT back to geometries. For more details on
the CSV driver for st_write, please see
https://gdal.org/en/stable/drivers/vector/csv.html#vector-csv
Maybe following up on the R-sig-geo list would be helpful if clarification is
needed.
Roger
--
Roger Bivand
Emeritus Professor
Norwegian School of Economics
Postboks 3490 Ytre Sandviken, 5045 Bergen, Norway
roger.biv...@nhh.no
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