search for: myforecast

Hi Laura! in your last line, you have myforecast$pred instead of my.forecast$pred Hope this helps! If that's not it, try str(my.list) str(my.forecast$pred) and check to see that they are both time series Sincerely, Erin Hodgess Associate Professor Department of Computer and Mathematical Sciences University of Houston - Downtown mailto: hod...

...ts(list(...), makeNames(...), dframe = dframe, union = TRUE) : non-time series not of the correct length I am calculating as follows: my.arima<-arima(my.list,order=c(0,0,2)) my.forecast<-predict(my.arima,15) ts.plot(my.list,my.forecast$pred,my.forecast$pred+2*my.forecast$se, myforecast$pred-2*my.forecast$se) my.list has 1 column and 2880 rows...I don't understand why I am getting this error message - any advice? Thanks, Laura Laura Quinn Institute of Atmospheric Science School of the Environment University of Leeds Leeds LS2 9JT tel: +44 113 343 1596 fax: +44 113 343 6716...