[R] Problem with zoo and BootPR packages

Ricardo Gonçalves Silva ricardogs at terra.com.br
Thu Nov 19 18:11:05 CET 2009


Ok,

Thanks all.
Rick.

--------------------------------------------------
From: "Achim Zeileis" <Achim.Zeileis at wu-wien.ac.at>
Sent: Thursday, November 19, 2009 3:06 PM
To: "Ricardo Gonçalves Silva" <ricardogs at terra.com.br>
Cc: "R-Help" <r-help at r-project.org>; <J.Kim at latrobe.edu.au>
Subject: Re: [R] Problem with zoo and BootPR packages

> On Thu, 19 Nov 2009, Ricardo Gonçalves Silva wrote:
>
>> Hi,
>>
>> I'm trying to plot the forecasts I generated using the Plot.Fore function 
>> of the BootPR package.
>> But I got an error from zoo:
>>
>> My data:
>>
>> Time Series:
>> Start = 1
>> End = 18
>> Frequency = 1
>> [1]  38731  38628  39117  92809  71984  31226  58613  72360 107956  92066
>> [11]  95208  99098  95848 120383 110717 105680  98469 101916
>>
>> Script:
>>
>> y1<-ts(y1);
>> forey1<-BootBC(y1,p=2,h=3,nboot=5000,type="const+trend",correct="ssf")
>> Plot.Fore(y1,forey1$forecast,start=1966,end=1984,frequency=1)
>>
>> The Error:
>>
>> Error in zooreg(x, start, end, frequency) :
>>  "data" : attempt to define illegal zoo object
>>
>> Any Help?
>
> This is a bug in Plot.Fore() which does not use the zoo functions
> correctly. It should be reported to the package maintainer.
>
> To avoid it, you can do
>   Plot.Fore(as.vector(y1), ...)
> instead of
>   Plot.Fore(y1, ...)
>
> Note to the maintainer (Jae Kim, Cc now): Plot.Fore() calls zooreg(x)
> where x is a "ts" object. This isn't the appropriate use of zooreg() which
> expects a numeric vector/matrix (or a factor). In the case above
> as.zoo(y1) would already be enough (and preserve all time information). Or
> you can manually call zooreg(coredata(y1), start = ..., end = ..., ....).
> See the zoo vignettes/examples for more details.
>
> Best,
> Z
>
>> Thanks
>>
>> Rick
>> [[alternative HTML version deleted]]
>>
>> ______________________________________________
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>> https://stat.ethz.ch/mailman/listinfo/r-help
>> PLEASE do read the posting guide 
>> http://www.R-project.org/posting-guide.html
>> and provide commented, minimal, self-contained, reproducible code.
>>
>>



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