[R-sig-eco] Best package for time lags?

[Richard L. Boyce]

I got great suggestions from Ben Bolker, which I'll pass on to others 
interested in time series.   He mentioned Chatfield and Diggle as 
good references.  The ccf() function in the stats package (one of the 
base R packages) and excellent place to start.

Rick Boyce

>Date: Wed, 5 May 2010 08:06:49 -0400
>From: "Richard L. Boyce" <boycer at nku.edu>
>To: r-sig-ecology at r-project.org
>Subject: [R-sig-eco] Best package for time lags?
>Message-ID: <a06240800c8070e9fba81@[192.168.200.252]>
>Content-Type: text/plain; charset="us-ascii"; format=flowed
>
>Hi folks,
>
>I'm on my second year of a project involving tree and shrub
>transpiration in a wetland forest in Kentucky.  Since it's a wetland
>forest, transpiration is rarely affected by water availability and is
>mostly driven by vapor pressure deficit (vpd).  I've been regressing
>daily transpiration vs. vpd, and it's usually a good fit.  However, I
>suspect their are some time lags, namely that transpiration may be
>responding to vpd not just from the current day but also previous
>days.
>
>I've done a quick pass through various R packages, and there are
>several that model time lags.  Can anyone make some recommendations
>for a beginner?  Thanks!
>--
>================================
>Richard L. Boyce
>Associate Professor
>Department of Biological Sciences
>Northern Kentucky University
>Nunn Drive
>Highland Heights, KY  41099  USA
>
>859-572-1407 (tel.)
>859-572-5639 (fax)
>boycer at nku.edu
>http://www.nku.edu/~boycer/
>=================================
>
>"One of the advantages of being disorderly is that one is constantly
>making exciting discoveries." - A.A. Milne