[R] Question about Aggregate

[Spencer Graves]

	  Did you try 'RSiteSearch("aggregate time series")'?  When I did this 
just now, the third hit was, 
"http://finzi.psych.upenn.edu/R/Rhelp02a/archive/55761.html", which 
might help you.  See in particular the "zoo" package and vignette, and 
especially the "aggregate.zoo" function, including the examples with the 
documentation.

	  If you'd like to submit another question to this listserver, PLEASE 
do read the posting guide! "www.R-project.org/posting-guide.html". 
People who follow more closely the procedure outlined there generally 
get better answers quicker, I believe.

	  hope this helps,
	  spencer graves

Matthieu Cornec wrote:

> hello,
> 
> Suppose you a monthly series you want to aggregate at a quaterly frequency
> with the start and the end of your series in the middle of the quarter.
> For example
>  2001M2 2001M3 2001M4 2001M5 2001M6 2001M7
> 12                  13     12      14         16              15
> 
> how can you get something like :
> 2001Q1 2001Q2 200Q3
> NA       14 NA
> 
> or
>  2001Q1 2001Q2 200Q3
> 12.5 14 15
> 
> Thanks in advance
> 
> Matthieu
> 
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