Futher more
When I write as below :,the result is still not satisfied .
asp=spectrum(ww_spec)
windspec=data.frame(asp)
plot(windspec,log="dB")
2014/1/7 Jie Tang <totangjie@gmail.com>
> hi
> I have a wind dataset and I want to analze its spectrum with
> the x-axis and y-axis in log .But I found that
> when I set log="dB" in spectrum as shown below,what I can get
> is a figure by log y-axis.
> How could I get a log-axis figure both in x-axis and y-axis ?
> thank you .
>
> yylab<-c("Wind Spectrum(db) ")
> YY=c(-40,40)
> spectrum(ww_spec,log = "dB",ylim=YY,main=maininfo,ylab=yylab)
>
> --
> TANG Jie
>
>
--
TANG Jie
Email: totangjie@gmail.com
Tel: 0086-2154896104
Shanghai Typhoon Institute,China
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