ng the package rather unwieldy. Second, this makes understanding and approaching the gio package more complicated; it will not be evident by looking at the examples, and usage of gio.</p>
<p>Instead <code>gio</code> should accept the dataframe as the first argument and then the relevant columns to extract. This can be implemented in many ways ranging from arguments that accept the column names as strings to reproducing ggplot2’s <code>aes</code> function. Here we settle for using non-standard evaluation t