[R] Stepwise regression and pacf

[Erin Hodgess]

Hello Tomas!

There are functions for pacf and plot.acf.

They are in library(ts)

Hope this helps!

Sincerely,
Erin Hodgess
Associate Professor
Department of Computer and Mathematical Sciences
University of Houston - Downtown
mailto: hodgess at gator.uhd.edu

To: R-help at stat.math.ethz.ch
Date: Sat, 28 Feb 2004 19:52:33 +0100
Subject: [R] Stepwise regression and partial correlation for wildlife census
	time series

Dear List;

We are doing a time series analysis of wildlife census data. We use a 
stepwise regression of the annual per capita rate of increase against 
pervious years population size (log transformed) as suggested by 
Berryman & Turchin (2001, Oikos 92:265-270). 

How can we obtain the partial correlation coefficients in R to make a 
plot of them against the lag as in a standard PACF?

Yours Sincerely

Tomas Willebrand