Dear Statalisters,

I am trying to convert coordinates in meters to xy latitude and longitude in Stata. I use Robert Picard's [geoinpoly] package to generate the xy coordinates so I can merge them with the shapefile.

The coordinates look like this:
_ID _X _Y
1 722289.86 1194827.3
2 724874.6 1194249.9
3 713779.37 1193967.1
4 719852.11 1195935.7

When I run the command:

geoinpoly _Y _X using "ttcoord.dta"


I get the error code 198:
latitude _Y must be between -90 and 90
r(198);

Even if I try using the option noprojection, I still get the same error.

Any advice would be greatly appreciated.
Thank you
Erik