R complete.cases()

1 개요

R complete.cases()

• "Find Complete Cases"

df <- read.table( header=TRUE, stringsAsFactors=FALSE, text="
Class  Name English Math
    A Alice      90   60
    A   Bob      80   NA
    B Carol      NA   80
    B  Dave      60   90
")
complete.cases(df)

df <- read.table( header=TRUE, stringsAsFactors=FALSE, text="
Class  Name English Math
    A Alice      90   60
    A   Bob      80   NA
    B Carol      NA   80
    B  Dave      60   90
")
df <- df[complete.cases(df),]
df

df <- read.table( header=TRUE, stringsAsFactors=FALSE, text="
Class  Name English Math
    A Alice      90   60
    A   Bob      80   NA
    B Carol      NA   80
    B  Dave      60   90
")
library(dplyr, warn.conflicts = FALSE)
df <-  df %>% filter(complete.cases(df))
df

2 같이 보기

• R is.na()
• R na.omit()
• R na.fail()
• R 결측치 제거

3 참고

• https://www.rdocumentation.org/packages/stats/versions/3.6.0/topics/complete.cases