Thank you for your help, it works now. But can we do the same test for spatial PANEL data? -- View this message in context: http://r-sig-geo.2731867.n2.nabble.com/lAGRANGE-MULTIPLIER-Test-and-error-in-listw-object-tp7586372p7586396.html Sent from the R-sig-geo mailing list archive at Nabble.com.