Remove NA in R

naoperation.r

# Reference:
# http://stackoverflow.com/questions/4862178/remove-rows-with-nas-in-data-frame

# example from ?na.omit, changed.

# use complete.cases to get a bool vector of cases without missing data.
DF <- data.frame(x = c(1, 2, 3), y = c(0, 10, NA), z = c(NA, 10, 6))
DF[complete.cases(DF), ]

# this can be used to choose specific columns of interests
DF[complete.cases(DF[, 'y']),]

# to simplily omit all rows containing NA, use na.omit
na.omit(DF)
m <- as.matrix(DF)
na.omit(m)

options("na.action")