[R] Re:Time-Series

[Vito Ricci]

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

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