Convert Factor Dates to Dates in R

Asked May 10 '15 at 21:11

Active May 10 '15 at 21:11

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I'm very new to R. I imported some csv data containing dates which got made into factors. Trying to make them into R dates but with no success. I've tried the code below.

> class(mydata$Date)
[1] "factor"
> as.Date(mydata$Date, format = "%Y-%m-%d")

Date still shows up as factors, what can be done? Dates are originally in the format of YYYY-MM-DD, example: 2015-05-08

asked May 10 '15 at 21:11

uncool

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Try coercing to character first - `as.Date(as.character(mydata$Date, format = "%Y-%m-%d"))`. – jbaums May 10 '15 at 21:13
1

I never encountered in such issue. `class(as.Date(factor("2015-05-08"), format = "%Y-%m-%d"))` works fine for me. – David Arenburg May 10 '15 at 21:21
2

Don't forget to actually assign the result to your data frame - i.e. `mydata$Date – jbaums May 10 '15 at 21:28
I didn't actually assign it, thanks! – uncool May 11 '15 at 20:11

Convert Factor Dates to Dates in R

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