Dear List,
I was trying to verify that I could use extend.series in the wavelets
package and kept getting an error when trying to use method="zero". I'm not
seeing where my syntax has gone awry.
According to the documentation, [see ?extend.series]
" method: A character string indicating which extension method to use.
Possible values are '"periodic"', '"reflection"', '"zero"',
'"mean"', and '"reflection.inverse"'."
c<-cbind(0:60, 60:0) # setup a series, length will be 61
> length(c)
[1] 122
>dew<-extend.series(c,method="zero",length="powerof2",
j=log(length(c),2)%/%1)
>Error in extend.series(c, method = "zero", length = "powerof2", j =
log(length(c), :
Invalid argument value for 'method'
Other methods work great, such as method="mean".
> dew<-extend.series(c,method="mean",length="powerof2",
j=log(length(c),2)%/%1)
>
> length(dew)
[1] 128
>
Has this come up in anyone else's experience? If so, what's the workaround
so that I can use "zero" as a method?
Rgds,
KeithC.
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