nalysis()</a></code>
function estimates the proportion of observations and the total units
(i.e. extent) that belong to each level of the categorical variable
(total units refer to the total number (point resources), total line
length (linear network), or total area (areal network)). Several useful
pieces of information are returned by <code><a href="../reference/cat_analysis.html">cat_analysis()</a></code>,
including estimates, standard errors, margins of error, and confidence
intervals. The analysis resu