Hello,
Or, to make it complete, use the na.rm argument.
sd(vec1, na.rm = TRUE)/sqrt(sum(!is.na(vec1)))
Rui Barradas
Em 08-05-2013 20:55, peter dalgaard escreveu:
On May 8, 2013, at 20:38 , Robert Baer wrote:
On 5/6/2013 7:02 AM, arun wrote:
stErr<- sd(vec1)/sqrt(length(vec1))
Or possibly,
stErr<- sd(vec1)/sqrt(!is.na(vec1))
You probably intended sqrt(sum(!is.na(...))).
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