Hi, you can address to a single ts in a multivariate ts object by namets[,index]. See this example:
> dati X Y 1 100 200 2 150 210 3 180 220 4 200 230 5 220 250 > serie<-ts(dati,start=1999) > serie Time Series: Start = 1999 End = 2003 Frequency = 1 X Y 1999 100 200 2000 150 210 2001 180 220 2002 200 230 2003 220 250 > serie[,1] ## first ts Time Series: Start = 1999 End = 2003 Frequency = 1 [1] 100 150 180 200 220 > serie[,2] ## second ts Time Series: Start = 1999 End = 2003 Frequency = 1 [1] 200 210 220 230 250 Regards Vito you wrote: In a dataframe you call one of the variable (or the column) connecting the name of the column to the dataframe name by means of the $ sign: so z$energy is the column named energy in the dataframe z. I don't know how to do the same with a multi-variable time-series. I tried both z.energy, z$energy to no avail. What's the right synthax? Ciao Vittorio ===== Diventare costruttori di soluzioni Became solutions' constructors "The business of the statistician is to catalyze the scientific learning process." George E. P. Box Top 10 reasons to become a Statistician 1. Deviation is considered normal 2. We feel complete and sufficient 3. We are 'mean' lovers 4. Statisticians do it discretely and continuously 5. We are right 95% of the time 6. We can legally comment on someone's posterior distribution 7. We may not be normal, but we are transformable 8. We never have to say we are certain 9. We are honestly significantly different 10. No one wants our jobs Visitate il portale http://www.modugno.it/ e in particolare la sezione su Palese http://www.modugno.it/archivio/palese/ ______________________________________________ R-help@stat.math.ethz.ch mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html