updated documentation

_sources/install.rst.txt

@@ -293,9 +293,8 @@ If you want to use the plotting functionality, you need to install *graphviz* an
 
 * download `graphviz <https://graphviz.org/download/#windows>`__
   and add the path to its installed binaries to your ``PATH`` environment variable.
-* download `matplotlib <http://www.lfd.uci.edu/~gohlke/pythonlibs/#matplotlib>`__
-  for Python 3.7/3.8/3.9/3.10 (*cp37/cp38/cp39/cp310*) and your bitness (32 or 64 bit)
-* install the *.whl* file using pip: ``pip install matplotlib-X.Y.Z.whl``
+* install support for graphviz using `pip install pygraphviz pillow lxml`
+* install matplotlib using `pip install matplotlib`
 
 .. code-block:: bash
 

install.html

@@ -270,9 +270,8 @@ <h2>Windows<a class="headerlink" href="#windows" title="Permalink to this headli
 <ul class="simple">
 <li><p>download <a class="reference external" href="https://graphviz.org/download/#windows">graphviz</a>
 and add the path to its installed binaries to your <code class="docutils literal notranslate"><span class="pre">PATH</span></code> environment variable.</p></li>
-<li><p>download <a class="reference external" href="http://www.lfd.uci.edu/~gohlke/pythonlibs/#matplotlib">matplotlib</a>
-for Python 3.7/3.8/3.9/3.10 (<em>cp37/cp38/cp39/cp310</em>) and your bitness (32 or 64 bit)</p></li>
-<li><p>install the <em>.whl</em> file using pip: <code class="docutils literal notranslate"><span class="pre">pip</span> <span class="pre">install</span> <span class="pre">matplotlib-X.Y.Z.whl</span></code></p></li>
+<li><p>install support for graphviz using <cite>pip install pygraphviz pillow lxml</cite></p></li>
+<li><p>install matplotlib using <cite>pip install matplotlib</cite></p></li>
 </ul>
 <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span>&gt; pip install python-weka-wrapper3
 </pre></div>