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lypha
2010 Feb 05
2
glm models with more than one response
...epresenting nutrient concentrations at sample point
locations. Ultimately I'd like to use the probabilities for each response
category in a simulation model such that these probabilities are used to
define a realized ecological niche.
When I try the following it works for a single response.
Typha.glm <- glm(fwc$VegType == "Cattail" ~ fwc$TP + fwc$TC + fwc$TN +
fwc$BD + fwc$LOI + fwc$Total_Mg, family = poisson)
But if I try this without specifying a specific VegType it fails.
plants.glm <- glm(fwc$VegType ~ fwc$TP + fwc$TC + fwc$TN + fwc$BD +
fwc$LOI + fwc$Total_Mg, fami...