symdiff

Returns elements that are in either set but not in both.

Miscellaneous helper functions for and from B. Bischl and
some other guys, mainly for package development.

Bernd Bischl

<dl><dt>x</dt>
<dd>[<code>vector</code>] 
Set 1.</dd>
<dt>y</dt>
<dd>[<code>vector</code>] 
Set 2.</dd></dl>

<dl>

<dt>x</dt>
<dd>[<code>vector</code>] 
Set 1.</dd>


<dt>y</dt>
<dd>[<code>vector</code>] 
Set 2.</dd>

</dl>