R data.frame()

1 개요

R data.frame()

mydf <- data.frame(
 Class   = c("A","A","B","B"),
 Name    = c("Alice","Bob","Carol","Dave"),
 English = c(90,80,NA,60),
 Math    = c(60,NA,80,90),
 stringsAsFactors = FALSE
)
mydf
##   Class  Name English Math
## 1     A Alice      90   60
## 2     A   Bob      80   NA
## 3     B Carol      NA   80
## 4     B  Dave      60   90

str(mydf)
## 'data.frame':	4 obs. of  4 variables:
##  $ Class  : chr  "A" "A" "B" "B"
##  $ Name   : chr  "Alice" "Bob" "Carol" "Dave"
##  $ English: num  90 80 NA 60
##  $ Math   : num  60 NA 80 90

2 같이 보기

• R I()
• R names()
• R read.table()
• R row.names()
• R plot.data.frame()
• R print.data.frame()
• R 데이터프레임
• R 하드코딩 텍스트 데이터 입력

3 참고

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