[adegenet-forum] Coordinates and distances in sPCA

[Maciek]

Dear All,

I've searched tutorials and internet to find what coordinate system 
should be used in sPCA but found no information. I checked data from 
Rupica, but could not figure out what cooridinate system it is. When I 
used regular WGS84 coordinates the distances between points are 
expressed in strange units of approximatelly 78 km but are consistent 
along north/south and east/west distances (however I did not check them 
in detail).

Where should I search for such information?

Cheers,

Maciek