[GRASS-stats] subset on spatialGrid??

[Jarek Jasiewicz]

Hi?

subset(spGRID, raster==1) or subset(spGRID, data$raster==1)
Can I do this or something similar??

i.e I'd like to avoid to convert raster to regular data.frame and use 
subset on dataf.rame due to long time of conversion
tahnx
Jarek