[R] question about window and inserting value

Jin Shusong jinss at hkusua.hku.hk
Tue Jun 22 10:39:09 CEST 2004


On Tue, Jun 22, 2004 at 02:31:13AM -0500, Laura Holt wrote:
> Hi again R People:
> 
> I have the following time series:
> >x.ts
>       Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep
> 2000  0.95  0.66  0.83  0.66 -1.45 -1.25  0.33  1.03 -0.48
> 2001  2.55  1.21 -1.10 -0.63  0.01 -2.20 -0.51  1.12  1.11
> 2002 -1.37  0.55 -0.63 -0.56  0.92 -1.73  0.59  0.77  0.30
> 2003  0.55 -0.01 -0.54  2.27 -1.29 -0.23  0.09 -0.50 -0.61
>       Oct   Nov   Dec
> 2000  0.84 -1.35  1.51
> 2001 -1.68  0.32 -0.97
> 2002 -1.74 -1.30  1.61
> 2003  0.25  0.66 -0.05
> >#For the March 2001 value:
> >window(x.ts,start=c(2001,3),end=c(2001,3))
>      Mar
> 2001 -1.1
> >#Fine
> >window(x.ts,start=c(2001,3),end=c(2001,3)) <- 10
> Error: couldn't find function "window<-"
> >#Doesn't work
> >
> 
> Is there a good way to insert the value into the March 2001 location, 
> please?
> other than:
> x.ts[15] <- 10
> 
> Thanks in advance!
> 
> R Version 1.9.0  for Windows
> 
> Sincerely,
> Laura Holt
> mailto: lauraholt_983 at hotmail.com
> 
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Dear Holt,

  Perhaps you can try this way,
  x.ts[time(x.ts)==(2001+(3-1)/12)] <- 10

   Jin




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