nbMult(nb, st, addT = TRUE, addST = FALSE)st: length(nb) should equal
length(st@sp)nb addT and addST are false, only
spatial neighbours are added for each time replicate.details are found in
Giovana M. de Espindola, Edzer Pebesma, Gilberto C\^amara, 2011. Spatio-temporal regression models for deforestation in the Brazilian Amazon. STDM 2011, The International Symposium on Spatial-Temporal Analysis and Data Mining, University College London - 18th-20th July 2011.