does the regression model have a separate mean which data type has a linear logistic regression model that is centered at zero? why does the gamma j and delta k model have to be zero why do group indicator include seperate mean should group indicators have seperate mean for each indicator what means in a nonnested regression model what is the meaning of the term gamma_j and delta_k? can you model a nonnested model should group indicator data be seperate what is the difference in gamma_j and delta_k mean in a nonnested model which regression model assumes the mean is zero? why can a non-nested model have multiple regression lines should gamma_j and delta_k have seperate mean in regression should group indicators have seperate mean for each what model is the average mean for delta/gamma of the regression how to find gamma_j why do the non-nested models have seperate mean of variables what is the meaning of the word nonnested why are group indicators in a hierarchical model what is the gamma delta delta mean