On March 12, 2018 11:59 PM, Richard M. Heiberger <rmh at temple.edu> wrote: > It looks like your V3 is a factor. > > testing_ggplot <- data.frame( > > V1=factor(c(256, 256, 256, 272, 272, 272)), > > V2=c("Disabled", "Disabled", "Enabled", "Disabled", "Enabled", "Enabled"), > > V3=681:686) > thanks for the explanation and solution. yah