R tapply()

1 개요

R tapply()

df <- read.table("https://raw.githubusercontent.com/shifteight/R/master/TRB/data/daphnia.txt", header=T)
head(df)

attach(df)
tapply(Growth.rate, Detergent, mean)

2 같이 보기

• R by()
• R apply()
• R lapply()
• R sapply()
• R mapply()
• R ddply()
• R aggregate()
• R apply 패밀리

3 참고

• https://www.rdocumentation.org/packages/base/versions/3.6.0/topics/tapply