Very basic statistics in R
On May 8, 2013, at 12:55 PM, peter dalgaard wrote:
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(...))).
And if 'vec1' has NA's in it, he would also need: sd(vec1, na.rm=TRUE)
David Winsemius Alameda, CA, USA