Re: [R] aggregate for zoo or its?

2010-03-08 Thread Jeffrey J. Hallman
Or for real power and flexibility, see the 'convert()' function in package
tis.

Jeff

Gabor Grothendieck ggrothendi...@gmail.com writes:
 See ?aggregate.zoo, e.g.

 library(zoo)
 z - zoo(1:1000, as.Date(2000-01-01) + 0:999)
 aggregate(z, as.yearmon, mean)

 or replace mean with whatever summarization you want.

 On Sun, Mar 7, 2010 at 5:29 PM, Erin Hodgess erinm.hodg...@gmail.com wrote:
 Dear R People:

 The aggregate function works very well on regular time series.

 Is there a version for zoo or its that would take daily data and
 convert it to monthly, please?


-- 
Jeff

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[R] aggregate for zoo or its?

2010-03-07 Thread Erin Hodgess
Dear R People:

The aggregate function works very well on regular time series.

Is there a version for zoo or its that would take daily data and
convert it to monthly, please?

Thanks in advance,
Sincerely,
Erin

-- 
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: erinm.hodg...@gmail.com

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R-help@r-project.org mailing list
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PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.


Re: [R] aggregate for zoo or its?

2010-03-07 Thread Gabor Grothendieck
See ?aggregate.zoo, e.g.

library(zoo)
z - zoo(1:1000, as.Date(2000-01-01) + 0:999)
aggregate(z, as.yearmon, mean)

or replace mean with whatever summarization you want.

On Sun, Mar 7, 2010 at 5:29 PM, Erin Hodgess erinm.hodg...@gmail.com wrote:
 Dear R People:

 The aggregate function works very well on regular time series.

 Is there a version for zoo or its that would take daily data and
 convert it to monthly, please?

 Thanks in advance,
 Sincerely,
 Erin

 --
 Erin Hodgess
 Associate Professor
 Department of Computer and Mathematical Sciences
 University of Houston - Downtown
 mailto: erinm.hodg...@gmail.com

 __
 R-help@r-project.org mailing list
 https://stat.ethz.ch/mailman/listinfo/r-help
 PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
 and provide commented, minimal, self-contained, reproducible code.


__
R-help@r-project.org mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
and provide commented, minimal, self-contained, reproducible code.