"Response must have at least two levels" comes up when adding a frequency in logistic regression
Hi, I'm trying to run a logistic regression with species presence/absence data as the response variable (across several years), and various environmental conditions (e.g. temperature) as predictors. I also have abundance data (number of individuals counted each day when the species was present, zero if none observed, null if no survey was conducted), which I would like to include as a frequency. I...