i would do this:
library(dplyr)
x <- x %>%
filter(Location != "Africa", Location != "Asia", Location != "Europe")
sort(unique(x$Location))
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i would do this:
library(dplyr)
x <- x %>%
filter(Location != "Africa", Location != "Asia", Location != "Europe")
sort(unique(x$Location))
CLICK HERE to find out more related problems solutions.