Hello,
I have large zoo objects (about 100 or more time series merged next to
eachother). Example:
X05.Oct.99 X05.Nov.99 X05.Dec.99 X05.Jan.00 X05.Feb.00 X05.Mar.00
X05.Apr.00 X05.May.00 X05.Jun.00
[1,] 5649.3 5679.4 5679.4 5679.4 5679.4
5679.4 5679.4 5679.4 5679.4
[2,] 5682.7 5719.2 5719.2 5719.2 5719.2
5719.2 5719.2 5719.2 5719.2
[3,] 5697.5 5745.5 5745.5 5745.5 5745.5
5745.5 5745.5 5745.5 5745.5
[4,] 5723.9 5767.8 5767.8 5767.8 5767.8
5767.8 5767.8 5767.8 5767.8
[5,] 5782.1 5829.8 5829.8 5829.8 5829.8
5829.8 5829.8 5829.8 5829.8
[6,] 5815.0 5850.9 5850.9 5850.9 5850.9
5850.9 5850.9 5850.9 5850.9
>
The column names contain dates, i.e., X05.Oct.99 stands for a time
sequence that was obtained on 05/10/1999. Each column is obtained month
+ 1 from the previous one.
Is it possible to access these columns (time series data) via a for/next
loop (or a while) that uses dates i/o (i in 1:8) in the above example?
Say: if month==Oct and year==1999 choose column X05.Oct.99 ...
Could I also generate automatically a variable, appropriately named from
the corresponding columns name that would contain the data and access it
by that date?
Any pointers really appreciated.
Thanks in advance,
Costas
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