[R] Extracting mean level of factor for all levels from a glm

Ruben Roa Ureta rroa at udec.cl
Mon Sep 11 06:59:48 CEST 2006


I have a glm where interest lies in the estimated mean levels of the
response Y for every level of factor Year (regardeless of statistical
significance of the factor), when the effect of other factors have been
accounted for. The model is of the form:


where Year is categorical and has T levels (labeled 1 to T in the data).
Help much appreciated on how to extract these 'standardised' annual
estimates of Y and their standard errors.


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