spplot() and reflconv() on R - Cannot allocate vector of size 464.2 Mb

[المشرف العام]

library(rgdal) x class(x)//[1] "SpatialGridDataFrame"//attr(,"package")//[1] "sp">spplot(x) // Error : cannot allocate vector of size 232.1 Mb>reflconv(x,2.0000E-05,-0.100000)//Error : cannot allocate vector of size 464.2 Mb

أكثر...