After I split my data frame into a training and test set, I made 2 logit regression tables with the training set. Now I need to use those models to predict the outcome of the test set and use both mod...

I struggle with running a GLM with abundance data (continuous, zero to 24) in R. I've tried various error structures (Poisson, Gamma) with appropriate links (log, inverse), but it seems to never work....

I am unable to understand what the [cov_params][1] from a fitted statsmodel represents. I thought it would be the covariance matrix of the data but that does not seem to be the case. It is not even sc...

I am trying to fit a negative binomial regression to count data, with 90 variables. Tried feature selection with GBM, LASSO and random forest. But when I fit the model using glm.nb from MASS, the coef...