How to keep level value unchanged when converting to numerical [duplicate]

Question

I'm trying to convert all factor values into numerical in a dataset:

The code is pretty straight forward, I used two methods, both do not return the same level values as they were in factor format:

    teenSf2_3 <- mutate_if(teenSf2_2, is.factor, as.numeric)

    teenSf2_2[] <- lapply(teenSf2_2, function(x) as.numeric(as.factor(x)))

The result has different level values:

It seems there is an increment of 1 for each level. How do I keep the level values unchanged when converting to numerical?

Convert to character first then to numeric ... as.numeric(as.character(x)) — markus
– markus, Commented Apr 6, 2019 at 19:36

lydias · Accepted Answer · 2019-04-06 19:36:32Z

0

I think I resolved the problem by using:

   teenSf2_2[] <- lapply(teenSf2_2, function(x) as.numeric(as.character(x)))

answered Apr 6, 2019 at 19:36

lydias

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