search for: damselfish

Displaying 1 result from an estimated 1 matches for "damselfish".

2012 Apr 14
1
R Error/Warning Messages with library(MASS) using glm.
Hi there, I have been having trouble running negative binomial regression (glm.nb) using library MASS in R v2.15.0 on Mac OSX. I am running multiple models on the variables influencing the group size of damselfish in coral reefs (count data). For total group size and two of my species, glm.nb is working great to deal with overdispersion in my count data. For two of my species, I am getting a mixture of warning and error messages. These species are different from the others in that they have slightly small...