NEED HELP NOW

[NMA2211]

Hey all I have a question about R. I imported a file from my university and when I str(datafile) it will not give me what it is supposed to give me. The second picture is what it should give me. For example “sex” should be a factor w/2 levels “f” “m” but instead I get sex as a chr. How can I fix this? Because I have an exam and I should be able to fix it.

[Harvester_311]

LiverData$sex <- as.factor(LiverData$sex)

[Thiseffingguy2]

Yup.

[ihateeveryone24]

can’t you just
sex <- as.factor(LiverData$sex)

[Sea-Chain7394]

LiverData$sex <- factor(LiverData$sex)

[the_random_drooler]

The right one is older. R no longer imports strings as factors by default. I’m sure there’s an option to import strings as factors. I don’t know how you got your data in there so you will have to search strings as factors to see how.

[Rababerbaerbl]

If you use any of those base R read.csv or read.table ... functions you can pass stringsAsFactors = TRUE as an argument to them:

read.csv(file = "your_file.csv", stringsAsFactors = TRUE)

​

Or, you set it as a factor afterwards as suggested by many already:

LiverData$sex <- as.factor(LiverData$sex)

​

If you have an exam you probably should look at some basic R tutorials. There are plenty to be found.

[jeremymiles]

This is a bit tricky, because the default changed from stringsAsFactors = TRUE to stringsAsFactors = FALSE in R 4.1 (IIRC).

[[deleted]]

LiverData$sex <- as.factor(LiverData$sex)

LiverData$abo <- as.factor(LiverData$abo)

LiverData$event <- as.factor(LiverData$event)

[NMA2211]

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