how to infer population counts what is the difference between categorical and hierarchical counts how to determine the effect of multiple hierarchical variables difference between categorical and hierarchical counts how to ad count in a data set what is the relationship between the number of users in a population and the number of video viewers how many user populations can be used for the categorical variable which category is higher the zero or the number one for user population what type of population is a c1 user what is the difference between a1 and b2 what is the difference between categorical and hierarchical which categorical variable represents a zero can you use multiple hierarchical variables what is the difference between a unified categorical variable and a hierarchical count? how can we infer the effect of categorical variables which category has more users which data type has more than one categorical variable? can i infer a variable as one of the following what is the difference between a single ad and multiple hierarchical ad what is the difference between a categorical variable and a hierarchical variable