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...ning ??? I have a small question regarding the function subset. I am copying data from one table but I just want to collect data from a user. When do I take the view, presents the results I want. The problem arises when can I make the tab. for RES_ID, introduces me to zero results do not envision noVIEW val_user='16' x.sub <- data.frame(subset(Dataset,Dataset$USER==val_user)) View(x.sub) lev_ID<-levels(x.sub$RES_ID) res<-table(x.sub$RES_ID) res E000- 0 F160- 0 XFRT- 33 XVVR- 0 SWEX- 23 SWRS- 0 just wanted to see the data with values ??greater than 0 in the example only...