The September Eco-Stats Lab (Friday
25th, 2pm, Bioscience level 6) will be on ordinal data analysis in ecology.
Ordered categorical data are commonplace in ecology when quantitative
measurement of a variable of interest is not feasible or too costly. Examples
include size of individuals, body condition and relative abundances of species.
Cumulative link models are a powerful class of models for analyzing such data
since observations are treated as categorical, the ordered nature is exploited
and the flexible regression framework allows in-depth analyses.We will use theordinal package in R to analyse some ecological ordinal data.
The code and details can be found here.