R언어 is.numeric()

1 개요

R is.numeric()

R

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is.numeric(3)             #[1] TRUE
is.numeric(3.14)          #[1] TRUE
is.numeric(-3.14)         #[1] TRUE

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R

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is.numeric("3")           #[1] FALSE
is.numeric("hello")       #[1] FALSE

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R

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is.numeric(c(1))          #[1] TRUE
is.numeric(c(1,2,3))      #[1] TRUE
is.numeric(c(1,-2,3.14))  #[1] TRUE

is.numeric(c(1,2,"3"))    #[1] FALSE

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2 같이 보기

• R as.numeric()
• R is.factor()
• R is.na()

3 참고

• https://www.rdocumentation.org/packages/base/versions/3.0.3/topics/numeric