search for: sightability

Displaying 2 results from an estimated 2 matches for "sightability".

2006 Dec 10
0
Offset for Poisson GLM
...is incorporated into the model. But since the number of observations in a given year, or hour of the day is the desired offset, rather than a column in my data frame, I'm not sure how to specify that as an offset in the model: glm(counts ~ as.factor(year) + as.factor(month) + as.factor(TOD) + sightability, data=count.data, family=poisson, offset=log(???)) Any ideas will be much appreciated! Thanks, Theoni Photopoulos -- Theoni Photopoulos, MRes Candidate Gatty Marine Laboratory School of Biology University of St Andrews St Andrews, Scotland tp14@st-andrews.ac.uk [[alternative HTML version dele...
2012 Mar 11
1
CRAN (and crantastic) updates this week
...rence via m-out-of-n bootstrap for parameters indexing the optimal regime. * Rdistance (1.0) Maintainer: Trent McDonald Author(s): Trent McDonald License: GNU General Public License http://crantastic.org/packages/Rdistance Analysis of line transect surveys. Estimates distance-based sightability functions and abundances. * relSim (0.1-33) Maintainer: James M. Curran Author(s): James M. Curran License: GPL (>= 2) http://crantastic.org/packages/relSim A set of tools to explore the behaviour statistics used for forensic DNA interpretation when close relatives are involved *...