na.action(x, ...) na.action.default(x)
x
|
any object whose NA action is given.
|
...
| further arguments special methods could assume. |
na.action
is a generic function, and na.action.default
its
default method.x
whenever
NA
s are not desired.options("na.action")
, na.omit
, na.fail
na.action(c(1,NA))