1. A machine-implemented method for generating a digital image that facilitates data analysis, comprising: upon receiving selection data that identifies one or more data sets and one or more columns of the data set, arranging values of the one or more data sets into an aggregate data table based on the selected one or more columns, wherein each cell of the aggregate data table comprises a set of values from the one or more data sets; applying one or more formulas to each cell of the aggregate data table to generate a post-analysis table, wherein each cell of the post-analysis table comprises a single value; mapping, for each cell of the post-analysis table, the value stored therein to a particular color; and generating the digital image by determining a color for each pixel of the digital image based on the how the cells are mapped to colors.