Ali -
If all you care about is if there are any missing values
(not how many or where they are), I think it would be a bit
faster to use
if(any(is.na(x))){...}
- Phil Spector
Statistical Computing Facility
Department of Statistics
UC Berkeley
spec...@stat.berkeley.edu
On Wed, 20 Oct 2010, Ali Tofigh wrote:
What is the best way to detect whether or not a (potentially large)
matrix contains missing values (NAs) or not? I use
if (sum(is.na(x)) > 0) {...}
are there more efficient ways?
/Ali
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