[R-SIG-Finance] print an xts object in reverse order

[Jeffrey Ryan]

For the record, if you really want to print it backwards, you can do this:

> as.matrix(x)[NROW(x):1,,drop=FALSE]
           [,1]
2011-11-25   10
2011-11-24    9
2011-11-23    8
2011-11-22    7
2011-11-21    6
2011-11-20    5
2011-11-19    4
2011-11-18    3
2011-11-17    2
2011-11-16    1

HTH
Jeff

P.S. rev on an xts object is actually rev.zoo, so the same behavior
you get from zoo you get in xts.

On Tue, Nov 15, 2011 at 6:07 PM, Jeffrey Ryan <jeffrey.ryan at lemnica.com> wrote:
> You can't.
>
> xts enforces time order - if it didn't it would be nearly useless.
>
> If you really need to reverse the order, you should think twice about
> it. If upon further consideration you still need it reversed, you can
> coerce to something else to accommodate.
>
> rev(coredata(x))
> rev(as.matrix(x)
>
> or
>
> rev(as.zoo(x))
>
> The latter is strange to me, as it reverses the underlying series, but
> not the dates.  Sort of alluding to the 'do you really want to do
> this...'
>
> Jeff
>
> On Tue, Nov 15, 2011 at 5:14 PM, Chris de Bleu <blue2bleu at yahoo.fr> wrote:
>> Hi,
>>
>> I would like to know how can I print an xts object in reverse order?
>>
>>
>> rev(xtsObject) always gives the same order as xtsObject.
>>
>> Thanks
>>
>>        [[alternative HTML version deleted]]
>>
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>
>
>
> --
> Jeffrey Ryan
> jeffrey.ryan at lemnica.com
>
> www.lemnica.com
> www.esotericR.com
>



-- 
Jeffrey Ryan
jeffrey.ryan at lemnica.com

www.lemnica.com
www.esotericR.com