CODEWITHSUNDEEP
rif-statement
Andre Masuko
Andre Masuko

Reputation: 39

using if else function in R

I have a dataset called brmayors. Within this dataset, there is a variable called DESCRICAO_GRAU_INSTRUCAO.

I want to create a new variable called collegedegree, which is yes when the variable DESCRICAO_GRAU_INSTRUCAO shows SUPERIOR COMPLETO and no otherwise.

To create this new variable, I am trying to run brmayors$collegedegree <- ifelse(brmayors$DESCRICAO_GRAU_INSTRUCAO == "SUPERIOR COMPLETO")

I am trying to use function ifelse but I do not know how to manage it.

Could someone please help me?

Thanks a lot!

Upvotes: 0

Views: 55

Answers (2)

akrun
akrun

Reputation: 886948

In base R, we can do this without any if/else or ifelse

brmayors$collegedegree <-  c("no", "yes")[1+ 
    (brmayors$DESCRICAO_GRAU_INSTRUCAO == "SUPERIOR COMPLETO")]

Also, it is better to keep as logical instead of yes/no because filtering is much easier with that

brmayors$collegedegree <- brmayors$DESCRICAO_GRAU_INSTRUCAO == "SUPERIOR COMPLETO"

Upvotes: 0

Ronak Shah
Ronak Shah

Reputation: 388817

You can use ifelse like : 

brmayors$collegedegree <- ifelse(brmayors$DESCRICAO_GRAU_INSTRUCAO == "SUPERIOR COMPLETO", "yes", "no")

Or with case_when from dplyr : 

library(dplyr)
brmayors %>%
   mutate(collegedegree = 
         case_when(DESCRICAO_GRAU_INSTRUCAO == "SUPERIOR COMPLETO" ~ 'yes', 
         TRUE~'no'))

Upvotes: 1

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