> Hello,
>
> I have lots of data in zoo format and would like to do some time
> series analysis. (using library(zoo), library(ts) )
>
> My data is usually from one year, and I try for example stl() to find
> some seasonalities or trends.
>
> I have now accepted, that I might have to convert my series into ts()
> but still I am not able to execute the comand since stl() is not
> satisfied
>
> x<-zoo(rnorm(365), as.Date("2005-01-01"):as.Date("2005-12-31"))
> x<-as.ts(x)
> #x<-as.ts(x, frequency=12) #this has no effect frequency is not taken
> stl(x)
> Fehler in stl(x) : series is not periodic or has less than two periods
>
> I googled for an answer but I couldn t find any. Is it really
> necessary to transform my zoo objects to ts? how can I fix the
> frequency-problem.
> I hope you can help me.
>
> Thank you very much in advance and best regards,
>
> Markus
>
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