Hi, is there a hasNA() / an anyNA() function in R? Of course,
hasNA <- function(x) {
any(is.na(x));
}
would do, but that would scan all elements in 'x' and then do the
test. I'm looking for a more efficient implementation that returns
TRUE at the first NA, e.g.
hasNA <- function(x) {
for (kk in seq(along=x)) {
if (is.na(x[kk]))
return(TRUE);
}
FALSE;
}
Cheers
Henrik
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