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This function allows you to convert directly from a numeric factor to the numeric class in R and strip away the underlying level index of a factor. This makes it safer to convert from factors to numeric characters directly without accidentally misassigning numbers.
makenum(x)A numeric
a factor with numeric levels
Jared E. Knowles
This function should only be used on factors where all levels are valid numbers that can be coerced into a numeric class.
a <- ordered(c(1, 3, '09', 7, 5))
b <- makenum(a)
class(b)
b
a
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