<p>The Cartesian coordinate system is the most familiar, and common, type of coordinate system.  There are no options to modify, and it is used by default, so you shouldn't need to call it explicitly</p>

a formula with the rows (of the tabular display) on the LHS and the columns (of the tabular display) on the RHS; the dot in the formula is used to indicate there should be no faceting on this dimension (either row or column); the formula can also be entered as a string instead of a classical formula object

logical value, should marginal rows and columns be displayed

Lay out panels in a rectangular/tabular manner.