Limpieza de datos

y<-c(1,2,3,4,5,6,7,NA,NA)

class(y)

## [1] "numeric"

is.na(y)

## [1] FALSE FALSE FALSE FALSE FALSE FALSE FALSE  TRUE  TRUE

sum(is.na(y))

## [1] 2

na.omit(y)

## [1] 1 2 3 4 5 6 7
## attr(,"na.action")
## [1] 8 9
## attr(,"class")
## [1] "omit"

datos2<-na.omit(y)
head(datos2,n=10)

## [1] 1 2 3 4 5 6 7

class(datos2)

## [1] "numeric"