Date: Thu, 20 May 1999 17:27:33 +0200 (DFT)
From: Arne Kovac <kovac@cauchy.mathematik.uni-essen.de>
To: Vorlow@bigfoot.com
Subject: Re: [R] Wavethresh + accessC > Error: wd.structure has no class
In-Reply-To: <37442117.5B6A9497@durham.ac.uk>
On Thu, 20 May 1999, K.E.Vorloou wrote:
> tdecomp <- wd(test.data)
> tdecomp.thresh <- threshold(tdecomp)
> trecons <- wr(tdecomp.thresh)
> plot(accessC(trecons))
>
> I receive the following reply:
>
> Error: wd.structure has no class
>
> Does anybody know what the problem is ?
trecons is a vector, but accessC returns the "smooth" coefficients of some
wavelet decomposition. Therefore accessC(trecons) does not make sense.
If you want to plot the reconstructed function try simply
> plot(trecons)
(maybe with an optional ty="l" argument to get straight lines)
If you want to extract the smooth coefficients at level j, try something
like
> tdecomp.Cj<-accessC(tdecomp.thresh,level=j)
Best
Arne
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