[R] Confidence Interval of Specral Density Plot

Zablone Owiti zowiti at ncst.go.ke
Sat May 21 09:27:09 CEST 2011


Dear Users,

I wish to know at what confidence level is the  confidence interval 
provided in the  Spectrum function (plot.spec) plots.
The only information provided in the help regarding this is : a confidence 
interval will be plotted by plot.spec: this is asymmetric, and the width of 
the centre mark indicates the equivalent bandwidth. 

Attached is an example plot with the BLUE confidence interval.

Thanks
----------------------------

 ZABLONE OWITI

 GRADUATE STUDENT

College of Atmospheric Science

Nanjing University of Information, Science and Technology

Add: 219 Ning Liu Rd, Nanjing, Jiangsu, 21004, P.R. China

 Tel: +86-25-58731402

Fax: +86-25-58731456 
Mob. 15077895632 
Website:  www.nuist.edu.cn 

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