Thank you. 
I do not know where the source code is available.I never uploaded anything to CRAN. I am just an R user so far.
Can you please tell me ?

I did notify the package maintainer mentioned in the package on-line documentation, namely
 Eric Aldrich <eldrich@gmail.com>, twice.
I suspect hic contact information is obsolete because he never got back to me or the R forum. 
Moreover, his web site does not exist and his name cannot be found in the University of Washington directory.

Best regards,
Maura



-----Messaggio originale-----
Da: David Winsemius [mailto:dwinsemius@comcast.net]
Inviato: mer 04/03/2009 7.20
A: mauede@alice.it
Cc: r-help@r-project.org; eldrich@gmail.com
Oggetto: Re: [R] flaw in CRAN package "wavelets": Daubechies "d8" not recognized by function wt.filter
 
You can look at the code yourself. The d8 filter appears to have a  
deletion mutation making it "different" than the other d-series and  
the fix looks feasible for testing:

d6.filter <- function(mod = F) {
             class <- "Daubechies"
             name <- "d6"
             L <- as.integer(6)
             g <- c(0.332670552950083, 0.806891509311093,  
0.459877502118491,
                 -0.135011020010255, -0.0854412738820267,  
0.0352262918857096)
             if (modwt == TRUE) {
                 g <- g/sqrt(2)
                 transform <- "modwt"
             }
             else transform <- "dwt"
             h <- wt.filter.qmf(g, inverse = TRUE)
             wt.filter <- new("wt.filter", L = L, h = h, g = g,
                 wt.class = class, wt.name = name, transform =  
transform)
             return(wt.filter)
         }
         d8.filter <- function(mod = F) {
             class <- "Daubechies"
             name <- "d8"
             L <- as.integer(8)
             g <- c(0.230377813307443, 0.714846570548406,  
0.630880767935879,
                 -0.0279837694166834, -0.187034811717913,  
0.0308413818353661,
                 0.0328830116666778, -0.0105974017850021)

< missing code>

             h <- wt.filter.qmf(g, inverse = TRUE)
             wt.filter <- new("wt.filter", L = L, h = h, g = g,
                 wt.class = class, wt.name = name, transform =  
transform)
             return(wt.filter)
         }
         d10.filter <- function(mod = F) {
             class <- "Daubechies"
             name <- "d10"
             L <- as.integer(10)
             g <- c(0.160102397974193, 0.60382926979719,  
0.724308528437773,
                 0.138428145901320, -0.242294887066382,  
-0.0322448695846381,
                 0.0775714938400459, -0.0062414902127983,  
-0.012580751999082,
                 0.0033357252854738)
             if (modwt == TRUE) {
                 g <- g/sqrt(2)
                 transform <- "modwt"
             }
             else transform <- "dwt"
             h <- wt.filter.qmf(g, inverse = TRUE)
             wt.filter <- new("wt.filter", L = L, h = h, g = g,
                 wt.class = class, wt.name = name, transform =  
transform)
             return(wt.filter)
         }

Make your own wt.filter with the missing code inserted and see if  
happiness prevails.When I apply the fix, I get:

 > wt.filter("d8")
An object of class "wt.filter"
Slot "L":
[1] 8

Slot "level":
[1] 1

Slot "h":
[1] -0.01059740 -0.03288301  0.03084138  0.18703481 -0.02798377  
-0.63088077  0.71484657 -0.23037781

Slot "g":
[1]  0.23037781  0.71484657  0.63088077 -0.02798377 -0.18703481   
0.03084138  0.03288301 -0.01059740

Slot "wt.class":
[1] "Daubechies"

Slot "wt.name":
[1] "d8"

Slot "transform":
[1] "dwt"


By the way, there also appears to be no d2 and calling wt.filter with  
"d2" also provokes an error. The proper manner for getting this  
addressed is to draw it to the attention of the package maintainer  
rather than posting a "to whom it may concern" message to the list.

-- 
David Winsemius

On Mar 4, 2009, at 12:36 AM, <mauede@alice.it> <mauede@alice.it> wrote:

>> wt.filter("d8")                                #### HOW COME ????
> Error in validObject(.Object) :
>  invalid class "wt.filter" object: invalid object for slot  
> "transform" in class "wt.filter": got class "function", should be or  
> extend class "character"
>
>> wt.filter("d10")                             # OK
> An object of class “wt.filter”
> Slot "L":
> [1] 10
>
>> wt.filter("d6")                               #OK
> An object of class “wt.filter”
> Slot "L":
> [1] 6
>
>
> Thank you in advance to anyone who takes care of reported  bugs in  
> CRAN packages.
> Maura
>
>
> tutti i telefonini TIM!
>
>
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>
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> and provide commented, minimal, self-contained, reproducible code.






tutti i telefonini TIM!


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