Remove unused factor levels from a ggplot bar plot?

One easy options is to use na.omit() on your data frame df to remove those rows with NA.

Notice that, when plotting, you're using only two columns of your data frame, meaning that, rather than passing your whole data. Frame you could take the relevant columns x,c("name", "var1") apply na. Omit to remove the unwanted rows (as Gavin Simpson suggests) na.

Omit(x,c("name", "var1")) and then plot this data.

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