What package or library are you using?
What is YHOO.Close ?
Try str(retYHOO) to see what it looks like.
--- On Mon, 8/17/09, afx111 <afx...@yahoo.com> wrote:
> From: afx111 <afx...@yahoo.com>
> Subject: [R] Newbie question re stddev, quantmod and performanceanalytics
> To: r-help@r-project.org
> Received: Monday, August 17, 2009, 1:43 AM
>
> Hi,
>
> I am trying to calculate the std dev of returns of YHOO so
> far i got:
>
> getSymbols("YHOO")
> retYHOO <- Return.calculate(Cl(YHOO))
> > sd(retYHOO)
>
> YHOO.Close
> NA
>
> but i received an NA....can any assist? tks!
> --
> View this message in context:
> http://www.nabble.com/Newbie-question-re-stddev%2C-quantmod-and-performanceanalytics-tp25001293p25001293.html
> Sent from the R help mailing list archive at Nabble.com.
>
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