R ifelse()

1 개요

R ifelse()

• "Conditional Element Selection"

R

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a <- c(3, 1, 4, 1, 5, 9)
ifelse(a %% 2 == 0, "even", "odd")

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R

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df <- read.table( header=TRUE, sep=",", stringsAsFactors=FALSE, text="
id,score
1,40
2,60
3,45
4,50
5,25
")
df

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df$result <- ifelse(df$score >= 50, "pass", "fail")
df

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2 같이 보기

• R if

3 참고

• https://www.datamentor.io/r-programming/ifelse-function/
• https://www.rdocumentation.org/packages/base/versions/3.6.1/topics/ifelse