Dear Agus, Maybe you can try this: dist<-distmap(yourdata) dist.grid<-as.SpatialGridDataFrame.im(dist) Regards
David March Morl? Doctorando / PhD student Instituto Mediterraneo de Estudios Avanzados (UIB-CSIC) C/Miquel Marqu?s, 21 07190 Esporles Islas Baleares - Spain Tel: +34 971 611 722 Fax: +34 971 611 761 Email: david.march at uib.es