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"NA"
NA
Convert "NA" values to NA for categorical variables
convert_level_to_na(data)
A data frame or tibble with "NA" converted to NA
A data frame or tibble
data <- data.frame( x1 = c(1, 2, NA), x2 = c("1", "2", "NA"), x3 = factor(c("1", "2", "NA")), x4 = factor(c("b", "NA", "a"), ordered = TRUE) ) convert_level_to_na(data)
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