Load packages library(tidyverse) library(hrbrthemes) library(MASS) library(moments) Why you should spell out your model explicitly Often, assumptions of widely used models, such as linear models, appear opaque. Why is heteroscedasticity important? Where is a list of the model assumptions I need to consider? As it turns out, there are straight forward answers to these (and similar) questions. The solution is to explicitly spell out your model. All “assumptions” can easily read off from these model …