I have the following xts objetct "temp"
> str(temp)
An ‘xts’ object from 2010-12-26 to 2011-03-05 containing:
Data: num [1:70, 1] 2.95 0.852 -0.139 1.347 2.485 ...
- attr(*, "dimnames")=List of 2
..$ : NULL
..$ : chr "t_n"
Indexed by objects of class: [POSIXct,POSIXt] TZ: GMT
xts Attributes:
NULL
> temp
t_n
2010-12-26 2.9500000
2010-12-27 0.8520833
2010-12-28 -0.1390625
...........
I would like to associate another column with the day of week in the form of
1=Mon, 2=Tue, ..., 7=Sun
in order to obtain:
>newtemp
t_n dow
2010-12-26 2.9500000 7
2010-12-27 0.8520833 1
2010-12-28 -0.1390625 2
..............
How could make this in the shortest (and elegant?) way?
Ciao from Rome
Vittorio
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