[R] Very basic statistics in R

[peter dalgaard]

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(...))).

-- 
Peter Dalgaard, Professor,
Center for Statistics, Copenhagen Business School
Solbjerg Plads 3, 2000 Frederiksberg, Denmark
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Email: pd.mes at cbs.dk  Priv: PDalgd at gmail.com