[R] problem with HoltWinters

[David Meyer]

How did you construct `data.ts'? Can you send me the file?

best,
David

On 2003.09.03 15:57, Luis Miguel Almeida da Silva wrote:
> Dear helpers
> 
> I'm having a problem with function HoltWinters from package ts. I have
> a time series that I want to fit an Holt-Winters model and make
> predictions for the next values. I've already built an object of class
> ts to serve as input to HoltWinters. But then I get an error; I've
> used HoltWinters a lot of times and this never hapened
> 
> > data.HW<-HoltWinters(data.ts)
> Error in model.frame(formula, rownames, variables, varnames, extras,
> extranames,  :
>         variable lengths differ
> 
> This is the data
> 
> > data.ts
>          Jan     Feb     Mar     Apr     May     Jun     Jul     Aug
>   Sep
> 2001 1117001 1017287 1195142 1049729 1409147 1267002 1579907 1563127
> 1195597
> 2002 1228333 1062520 1080117 1171998 1383951 1141008 1604061 1446024
> 1276017
> 2003 1068221 1045052 1164273 1091765 1272330 1305676
> 
>          Oct     Nov     Dec
> 2001 1290688 1104137 1027022
> 2002 1262232 1048522 1174157
> 2003
> 
> Do you know what is happening?
> 
> Thank you
> Luis
> 
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