R help - Jan 2005 - Re:Time-Series

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/

On Thu, 13 Jan 2005 13:54:43 +0100 (CET) Vito Ricci wrote:
> Hi,
> 
> you can address to a single ts in a multivariate ts
> object by namets[,index]. See this example:
Note, that index can also be a string and not only the index number. You
wanted to have the analogue of z$energy which could also be
  z[, "energy"]

hth,
Z
> > 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/
> 
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