R help - Nov 2004 - arrows in histograms

Dear all,

I have a null frequency histogram of  pairwise associations values.
How can I put  an arrow on the histogram to indicate the critical value
obtained from the null distribution? [In this case, quantile 0.05].

Thanks
-- 
Rog??rio R. Silva
MZUSP http://www.mz.usp.br
Linux User # 354364
Linux counter http://counter.li.org

On 25-Nov-04 Rogerio Rosa da Silva wrote:
> Dear all,
> 
> I have a null frequency histogram of _pairwise associations values.
> How can I put _an arrow on the histogram to indicate the critical value
> obtained from the null distribution? [In this case, quantile 0.05].
?Something like

  q05 <- qnorm(0.95)  ## or qnorm(0.05) -- not sure which you really want
  hist(x,xlim=c(-5,5))
  arrows(q05,400,q05,0,length=0.1)
  text(q05+0.1,400,"5 per cent point",adj=0)

Best wishes,
Ted.


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Date: 25-Nov-04                                       Time: 19:46:15
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