1. A method for analyzing a process, the method comprising a computer system automatically performing the following: processing a data set containing observations of the process, the observations expressed as values for a plurality of variables and for an outcome of the process, wherein processing the data set determines behaviors for different variable combinations with respect to the outcome, the variable combinations defined by values for one or more of the variables; estimating impacts of different variable combinations based on (a) the behaviors of the variable combinations and (b) populations of the variable combinations; and based on the estimated impacts, automatically generating a multi-screen reporting of which variable combinations have a largest estimated impact.