CODEWITHSUNDEEP
rdataframenumbersintegercharacter
Amit Sasson
Amit Sasson

Reputation: 83

specifying which numbers to use with as.numeric() function in R

I wanna convert a column with three different character values to numeric.

the column is long but the head is: Yes No No Maybe No Yes

I want it to look like this: 2 1 1 3 1 2

the problem is that I wanna specify which value would get which number, its important that "Yes" would get the value 2, "No" would get the value 1 and "Maybe" get the value 3.

I tried using as.numeric but it decides what values on its own.

Upvotes: 0

Views: 532

Answers (2)

Mustufain
Mustufain

Reputation: 198

You can also do this in a dplyrish way. In this case c is a dataframe 

c = as.data.frame(c('Yes','No','No','Maybe','No','Yes'))

dplyr::case_when(

  c == "Yes" ~ 2,
  c == "No" ~ 1,
  c == "Maybe" ~ 3

)

Upvotes: 0

Daniel Gimenez
Daniel Gimenez

Reputation: 601

Try this:

col=c("Yes", "No", "No", "Maybe", "No", "Yes")
col<-as.integer(factor(col,levels=c("No","Yes","Maybe")))

When you put the levels yo can order them whatever you want

Upvotes: 1

Related Questions