Removes columns with completenes below cutoff
Examples
data.frame(a=1:10,b=NA, c=c(2,NA)) |> remove_empty_cols(cutoff=.5)
#> a c
#> 1 1 2
#> 2 2 NA
#> 3 3 2
#> 4 4 NA
#> 5 5 2
#> 6 6 NA
#> 7 7 2
#> 8 8 NA
#> 9 9 2
#> 10 10 NA