Converting character to number

Asked Jul 25 '18 at 13:05

Active Jul 25 '18 at 13:07

Viewed 40 times

levels(Auto$doornumber) <- c(4, 2)
Auto$doornumber <- as.numeric(levels(Auto$doornumber))[Auto$doornumber]

I am not sure why the code above is not converting my variable from character to numeric in my dataframe.

Auto <- doornumber = c(two, four, two, four)

I want the above variable/column has been changed to

Auto <- doornumber = c(2, 4, 2, 4)

edited Jul 25 '18 at 13:07

Sotos

asked Jul 25 '18 at 13:05

wyne thomas

I don't think this is a dupe, at least not the right dupe. Maybe relevel, then as.numeric kind of duplicate. – zx8754 Jul 25 '18 at 13:14
Maybe try: `as.numeric(factor(Auto$doornumber, levels = c("one", "two", "three", "four")))` – zx8754 Jul 25 '18 at 13:19
Not sure if you know what `Auto <- doornumber = c(2, 4, 2, 4)` does.. It just assigns `c(2, 4, 2, 4)` to both `Auto` and `doornumber`. Not to `Auto$doornumber`. – Axeman Jul 25 '18 at 13:39
@zx8754 Its not working. In my dataframe, variable doornumber contains only ("two, "four") which i need to convert like (2, 4). – wyne thomas Jul 25 '18 at 14:07
@Axeman, what is the solution? – wyne thomas Jul 25 '18 at 14:09
Then maybe try: `Auto$doornumber <- setNames(c(2, 4), c("two", "four"))[ Auto$doornumber ]` – zx8754 Jul 25 '18 at 14:22
Thank you @ZX it works perfectly – wyne thomas Jul 26 '18 at 08:59

0 Answers0