 environment variable. It is recommended
to set this in the <code>.Renviron</code> file so it’s accessible in all
R sessions, the <code><a href="../reference/set_cansim_cache_path.html">set_cansim_cache_path()</a></code> function
facilitates that and allows for installing this permanently via the
<code>install=TRUE</code> option. If the environment variable is not set
the package will only cache the data for the duration of the current
session.</p>
<p>For this vignette we use the (rather small) motor vehi