Design plots, as defined in this article, show summaries of a response variable given the classes or distinct levels of numeric or string variables presented as influencing factors. Any summarize results can be plotted using statsby as an engine to produce summaries for groups of observations...

The time variable is most commonly plotted precisely as recorded in graphs showing change over time. However, if the most interesting part of the graph is very crowded, then transforming the time axis to give that part more space is worth consideration. In this column, I discuss logarithmic...

Conventions about what information goes on each axis of a two-way plot are precisely that, conventions. This column discusses—historically, syntactically, and by example-the idea that flouting convention in various ways can lead to small but useful improvements in graph display. Putting y-axis...

Matrices in Stata can serve as look-up tables. Because Stata will accept references to matrix elements within many commands, most notably generate and replace, users can access and use values from a table in either vector or full matrix form. Examples are given for entry of small datasets,...