Replace numeric elements in a vector with character elements in R

Question

I have a numeric vector containing elements of different values

m<-c(0,1,3,1,0,4,6,3,7,1)

I want to replace each unique element with a particular character element: 0 with "NA", 1 with "blue", 3 with "green", 4 with "purple", 6 with "pink", 7 with "yellow" and get the output in a different vector

The output should look like this:

>m2
"NA","blue","green","blue","NA","purple","pink","green","yellow","blue"

Read about `?factor` function. – zx8754 Apr 21 '20 at 07:22 — zx8754, Apr 21 '20 at 07:22

score 3 · Answer 1 · answered Apr 21 '20 at 07:24

3

Here you go...

dplyr::recode(m, "1" = "blue", "3" = "green", "4" = "purple", "6"="pink", "7"="yellow",.default = "NA")

answered Apr 21 '20 at 07:24

nikn8

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score 2 · Answer 2 · answered Apr 21 '20 at 07:28

2

In base R you can use

m2 <- factor(m, labels = c("NA", "blue", "green", "purple", "pink", "yellow"))

Output

# [1] NA     blue   green  blue   NA     purple pink   green  yellow blue  
# Levels: NA blue green purple pink yellow

answered Apr 21 '20 at 07:28

Ric S

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Replace numeric elements in a vector with character elements in R

2 Answers2