Dear R Users,

I am trying to replace the value of one row in a single column zoo object. 


I try the following, but it does not seem to work. Could someone explain 
to me how I can either replace the value for this row or just delete the 
row entirely ?

Many thanks in advance,
Tolga

> is.zoo(curve)
[1] TRUE
> attributes(curve)
$index
  [1] 08/22/07 08/23/07 08/24/07 08/27/07 08/28/07 08/29/07 08/30/07 
08/31/07 09/03/07 09/04/07
 [11] 09/05/07 09/06/07 09/07/07 09/10/07 09/11/07 09/12/07 09/13/07 
09/14/07 09/17/07 09/18/07
 [21] 09/19/07 09/20/07 09/21/07 09/24/07 09/25/07 09/26/07 09/27/07 
09/28/07 10/01/07 10/02/07
 [31] 10/03/07 10/04/07 10/05/07 10/08/07 10/09/07 10/10/07 10/11/07 
10/12/07 10/15/07 10/16/07
 [41] 10/17/07 10/18/07 10/19/07 10/22/07 10/23/07 10/24/07 10/25/07 
10/26/07 10/29/07 10/30/07
 [51] 10/31/07 11/01/07 11/02/07 11/05/07 11/06/07 11/07/07 11/08/07 
11/09/07 11/12/07 11/13/07
 [61] 11/14/07 11/15/07 11/16/07 11/19/07 11/20/07 11/21/07 11/22/07 
11/23/07 11/26/07 11/27/07
 [71] 11/28/07 11/29/07 11/30/07 12/03/07 12/04/07 12/05/07 12/06/07 
12/07/07 12/10/07 12/11/07
 [81] 12/12/07 12/13/07 12/14/07 12/17/07 12/18/07 12/19/07 12/20/07 
12/21/07 12/24/07 12/25/07
 [91] 12/26/07 12/27/07 12/28/07 12/31/07 01/01/08 01/02/08 01/03/08 
01/04/08 01/07/08 01/08/08
[101] 01/09/08 01/10/08 01/11/08 01/14/08 01/15/08 01/16/08 01/17/08 
01/18/08 01/21/08 01/22/08
[111] 01/23/08 01/24/08 01/25/08 01/28/08 01/29/08 01/30/08 01/31/08 
02/01/08 02/04/08 02/05/08
[121] 02/06/08 02/07/08 02/08/08 02/11/08 02/12/08 02/13/08 02/14/08 
02/15/08 02/18/08 02/19/08
[131] 02/20/08 02/21/08 02/22/08 02/25/08 02/26/08 02/27/08 02/28/08 
02/29/08 03/03/08 03/04/08
[141] 03/05/08 03/06/08 03/07/08 03/10/08 03/11/08 03/12/08 03/13/08 
03/14/08 03/17/08 03/18/08
[151] 03/19/08 03/20/08 03/21/08 03/24/08 03/25/08 03/26/08 03/27/08 
03/28/08 03/31/08 04/01/08
[161] 04/02/08 04/03/08 04/04/08 04/07/08 04/08/08 04/09/08 04/10/08 
04/11/08 04/14/08 04/15/08
[171] 04/16/08 04/17/08 04/18/08 04/21/08 04/22/08 04/23/08 04/24/08 
04/25/08 04/28/08 04/29/08
[181] 04/30/08 05/01/08 05/02/08 05/05/08 05/06/08 05/07/08 05/08/08 
05/09/08 05/12/08 05/13/08
[191] 05/14/08 05/15/08 05/16/08 05/19/08 05/20/08 05/21/08 05/22/08 
05/23/08 05/26/08 05/27/08
[201] 05/28/08 05/29/08 05/30/08 06/02/08 06/03/08 06/04/08 06/05/08 
06/06/08 06/09/08 06/10/08
[211] 06/11/08 06/12/08 06/13/08 06/16/08 06/17/08

$class
[1] "zoo"

> curve[dates("03/19/2008")]
03/19/08 
  38.032 
> curve[dates("03/19/2008")]<-0  # trying to assign 0 to this
> curve[dates("03/19/2008")]
03/19/08 
  38.032   # <-- still 38.032 !



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