[R] Help with a code in R

[PIKAL Petr]

Hi

Well, it seems to me that it is coded in different language like C++.
The code is not reproducible but the error seems to be from your call of ts

You can check it line by line with setting i to arbitrary value and inspect how your objects look like, however some of your constructions seems to me quite weird.

e.g.
forecast_nal<-data.frame()

leads to mempty data frame with no column named mean
> forecast_nal
data frame with 0 columns and 0 rows
> forecast_nal$mean
NULL

and I am rather surprised how this column come into existence.

BTW, are you sure that in each cycle your rbinded or cbinded objects have the same size?

Cheers
Petr


> -----Original Message-----
> From: R-help [mailto:r-help-bounces at r-project.org] On Behalf Of Erika Rocío
> Espinosa Balbuena
> Sent: Monday, September 5, 2016 8:26 PM
> To: r-help at r-project.org
> Subject: [R] Help with a code in R
>
> Hi,
>
> I am working with this code:
>
> forecast_nal<-data.frame()
> out<-vector()
> x<-foreach(i=1:nrow(comb)) %do%
> {
>
> s<-comb[i,'prod_id']
>
> #Familia+Sumbarca+prod_id
> #Serie
>
> bcomb1<-b
> bcomb1<-subset(bcomb1,bcomb1$prod_id == s & bcomb1$year <= 2015)
> bcomb1<-arrange(bcomb1,year,week)
> a<-bcomb1[1:1,'week']
> d<-bcomb1[1:1,'year']
> f<-nrow(bcomb1)
> h<-bcomb1[f:f,'year']
> j<-bcomb1[f:f,'week']
> bcomb1<-bcomb1[,c(6)]
>
> if (length(bcomb1)<=10 || h=="2014" || (h=="2015" && j<=48)) { out[i]<-s }
> else {
>        y <- ts(bcomb1, frequency=52, start=c(d, a)) ##Casos
>
> if (length(y)<=60)
> {
>
> v<-auto.arima(y)
> v<-arimaorder(v)
> fit <- arima(y, order = v ,method="ML")
>       fca <- forecast(fit, h = 16)
> dates <- attr(forecast_nal$mean, "tsp")
> datecol <- seq(from=dates[1], to=dates[2], by=1/dates[3])
> fct<-cbind.data.frame(s,datecol,Point=fca$mean)
> forecast_nal<- rbind.data.frame(forecast_nal,fct)
> }
> else
> {
>
> fit <- tbats(y)
> fcb <- forecast(fit, h = 16)
> dates <- attr(forecast_nal$mean, "tsp")
> datecol <- seq(from=dates[1], to=dates[2], by=1/dates[3])
> fct<-cbind.data.frame(s,datecol,Point=fcb$mean)
>             forecast_nal<- rbind.data.frame(forecast_nal,fct)
> }
> }
> }
>  But I am getting this error:
>
> Error in `[<-.ts`(`*tmp*`, ri, value = c(26656.136365833, 26750.9374514082,
>  :
>   only replacement of elements is allowed
>
> Can someone help me with this?
>
> Thanks
>
>
> --
> Erika Rocío Espinosa Balbuena
>
>       [[alternative HTML version deleted]]
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> 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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