writeOGR() to shapefile and dates/times classes
On Sun, 24 Jun 2012, Agustin Lobo wrote:
writeOGR() issues an error if the Spatial Points/Polygon Dataframe has any variables of classes dates or times. While I understand that this is rather a problem of using a bad format (shapefile) that does not accept these kind of variables, I suggest the developer could consider that the necessary conversion to character were done automatically by writeOGR() and just issue a warning message instead of an error.
Please provide a reproducible example, and sessionInfo() output. The function already converts the standard date and time classes POSIXct, POSIXlt, Date and POSIXt to character. If the user chooses a non-base date-time representation, arguably the user should then convert to a base class first, otherwise rgdal would depend on zoo, xts, lubridate or whatever. Roger
Thanks! Agus
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Roger Bivand Department of Economics, NHH Norwegian School of Economics, Helleveien 30, N-5045 Bergen, Norway. voice: +47 55 95 93 55; fax +47 55 95 95 43 e-mail: Roger.Bivand at nhh.no