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<li><a class="reference internal" href="#">Customizing Location of Subplot Using GridSpec</a><ul>
<li><a class="reference internal" href="#basic-example-of-using-subplot2grid">Basic Example of using subplot2grid</a></li>
<li><a class="reference internal" href="#gridspec-and-subplotspec">GridSpec and SubplotSpec</a></li>
<li><a class="reference internal" href="#adjust-gridspec-layout">Adjust GridSpec layout</a></li>
<li><a class="reference internal" href="#gridspec-using-subplotspec">GridSpec using SubplotSpec</a></li>
<li><a class="reference internal" href="#a-complex-nested-gridspec-using-subplotspec">A Complex Nested GridSpec using SubplotSpec</a></li>
<li><a class="reference internal" href="#gridspec-with-varying-cell-sizes">GridSpec with Varying Cell Sizes</a></li>
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<div class="section" id="customizing-location-of-subplot-using-gridspec">
<span id="gridspec-guide"></span><h1>Customizing Location of Subplot Using GridSpec<a class="headerlink" href="#customizing-location-of-subplot-using-gridspec" title="Permalink to this headline">¶</a></h1>
<blockquote>
<div><dl class="docutils">
<dt><tt class="docutils literal"><span class="pre">GridSpec</span></tt></dt>
<dd>specifies the geometry of the grid that a subplot will be
placed. The number of rows and number of columns of the grid
need to be set. Optionally, the subplot layout parameters
(e.g., left, right, etc.) can be tuned.</dd>
<dt><tt class="docutils literal"><span class="pre">SubplotSpec</span></tt></dt>
<dd>specifies the location of the subplot in the given <em>GridSpec</em>.</dd>
<dt><tt class="docutils literal"><span class="pre">subplot2grid</span></tt></dt>
<dd>a helper function that is similar to “pyplot.subplot” but uses
0-based indexing and let subplot to occupy multiple cells.</dd>
</dl>
</div></blockquote>
<div class="section" id="basic-example-of-using-subplot2grid">
<h2>Basic Example of using subplot2grid<a class="headerlink" href="#basic-example-of-using-subplot2grid" title="Permalink to this headline">¶</a></h2>
<p>To use subplot2grid, you provide geometry of the grid and the location
of the subplot in the grid. For a simple single-cell subplot:</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot2grid</span><span class="p">((</span><span class="mi">2</span><span class="p">,</span><span class="mi">2</span><span class="p">),(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span>
</pre></div>
</div>
<p>is identical to</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span><span class="mi">2</span><span class="p">,</span><span class="mi">1</span><span class="p">)</span>
</pre></div>
</div>
<p>Note that, unlike matplotlib’s subplot, the index starts from 0 in gridspec.</p>
<p>To create a subplot that spans multiple cells,</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">ax2</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot2grid</span><span class="p">((</span><span class="mi">3</span><span class="p">,</span><span class="mi">3</span><span class="p">),</span> <span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">0</span><span class="p">),</span> <span class="n">colspan</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
<span class="n">ax3</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot2grid</span><span class="p">((</span><span class="mi">3</span><span class="p">,</span><span class="mi">3</span><span class="p">),</span> <span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">),</span> <span class="n">rowspan</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
</pre></div>
</div>
<p>For example, the following commands</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">ax1</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot2grid</span><span class="p">((</span><span class="mi">3</span><span class="p">,</span><span class="mi">3</span><span class="p">),</span> <span class="p">(</span><span class="mi">0</span><span class="p">,</span><span class="mi">0</span><span class="p">),</span> <span class="n">colspan</span><span class="o">=</span><span class="mi">3</span><span class="p">)</span>
<span class="n">ax2</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot2grid</span><span class="p">((</span><span class="mi">3</span><span class="p">,</span><span class="mi">3</span><span class="p">),</span> <span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="mi">0</span><span class="p">),</span> <span class="n">colspan</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
<span class="n">ax3</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot2grid</span><span class="p">((</span><span class="mi">3</span><span class="p">,</span><span class="mi">3</span><span class="p">),</span> <span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">),</span> <span class="n">rowspan</span><span class="o">=</span><span class="mi">2</span><span class="p">)</span>
<span class="n">ax4</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot2grid</span><span class="p">((</span><span class="mi">3</span><span class="p">,</span><span class="mi">3</span><span class="p">),</span> <span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span>
<span class="n">ax5</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot2grid</span><span class="p">((</span><span class="mi">3</span><span class="p">,</span><span class="mi">3</span><span class="p">),</span> <span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">1</span><span class="p">))</span>
</pre></div>
</div>
<p>creates</p>
<p>(<a class="reference external" href="../users/plotting/examples/demo_gridspec01.py">Source code</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec01.png">png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec01.hires.png">hires.png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec01.pdf">pdf</a>)</p>
<div class="figure">
<img alt="../_images/demo_gridspec01.png" src="../_images/demo_gridspec01.png" />
</div>
</div>
<div class="section" id="gridspec-and-subplotspec">
<h2>GridSpec and SubplotSpec<a class="headerlink" href="#gridspec-and-subplotspec" title="Permalink to this headline">¶</a></h2>
<p>You can create GridSpec explicitly and use them to create a Subplot.</p>
<p>For example,</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot2grid</span><span class="p">((</span><span class="mi">2</span><span class="p">,</span><span class="mi">2</span><span class="p">),(</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">))</span>
</pre></div>
</div>
<p>is equal to</p>
<div class="highlight-python"><div class="highlight"><pre><span class="kn">import</span> <span class="nn">matplotlib.gridspec</span> <span class="kn">as</span> <span class="nn">gridspec</span>
<span class="n">gs</span> <span class="o">=</span> <span class="n">gridspec</span><span class="o">.</span><span class="n">GridSpec</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
<span class="n">ax</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="mi">0</span><span class="p">])</span>
</pre></div>
</div>
<p>A gridspec instance provides array-like (2d or 1d) indexing that
returns the SubplotSpec instance. For, SubplotSpec that spans multiple
cells, use slice.</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">ax2</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="mi">1</span><span class="p">,:</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="n">ax3</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="mi">1</span><span class="p">:,</span> <span class="o">-</span><span class="mi">1</span><span class="p">])</span>
</pre></div>
</div>
<p>The above example becomes</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">gs</span> <span class="o">=</span> <span class="n">gridspec</span><span class="o">.</span><span class="n">GridSpec</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
<span class="n">ax1</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="mi">0</span><span class="p">,</span> <span class="p">:])</span>
<span class="n">ax2</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="mi">1</span><span class="p">,:</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="n">ax3</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="mi">1</span><span class="p">:,</span> <span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="n">ax4</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span><span class="mi">0</span><span class="p">])</span>
<span class="n">ax5</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span><span class="o">-</span><span class="mi">2</span><span class="p">])</span>
</pre></div>
</div>
<p>(<a class="reference external" href="../users/plotting/examples/demo_gridspec02.py">Source code</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec02.png">png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec02.hires.png">hires.png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec02.pdf">pdf</a>)</p>
<div class="figure">
<img alt="../_images/demo_gridspec02.png" src="../_images/demo_gridspec02.png" />
</div>
</div>
<div class="section" id="adjust-gridspec-layout">
<h2>Adjust GridSpec layout<a class="headerlink" href="#adjust-gridspec-layout" title="Permalink to this headline">¶</a></h2>
<p>When a GridSpec is explicitly used, you can adjust the layout
parameters of subplots that are created from the gridspec.</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">gs1</span> <span class="o">=</span> <span class="n">gridspec</span><span class="o">.</span><span class="n">GridSpec</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
<span class="n">gs1</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">left</span><span class="o">=</span><span class="mf">0.05</span><span class="p">,</span> <span class="n">right</span><span class="o">=</span><span class="mf">0.48</span><span class="p">,</span> <span class="n">wspace</span><span class="o">=</span><span class="mf">0.05</span><span class="p">)</span>
</pre></div>
</div>
<p>This is similar to <em>subplots_adjust</em>, but it only affects the subplots
that are created from the given GridSpec.</p>
<p>The code below</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">gs1</span> <span class="o">=</span> <span class="n">gridspec</span><span class="o">.</span><span class="n">GridSpec</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
<span class="n">gs1</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">left</span><span class="o">=</span><span class="mf">0.05</span><span class="p">,</span> <span class="n">right</span><span class="o">=</span><span class="mf">0.48</span><span class="p">,</span> <span class="n">wspace</span><span class="o">=</span><span class="mf">0.05</span><span class="p">)</span>
<span class="n">ax1</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs1</span><span class="p">[:</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="p">:])</span>
<span class="n">ax2</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs1</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="p">:</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="n">ax3</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs1</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="n">gs2</span> <span class="o">=</span> <span class="n">gridspec</span><span class="o">.</span><span class="n">GridSpec</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
<span class="n">gs2</span><span class="o">.</span><span class="n">update</span><span class="p">(</span><span class="n">left</span><span class="o">=</span><span class="mf">0.55</span><span class="p">,</span> <span class="n">right</span><span class="o">=</span><span class="mf">0.98</span><span class="p">,</span> <span class="n">hspace</span><span class="o">=</span><span class="mf">0.05</span><span class="p">)</span>
<span class="n">ax4</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs2</span><span class="p">[:,</span> <span class="p">:</span><span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="n">ax5</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs2</span><span class="p">[:</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">])</span>
<span class="n">ax6</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs2</span><span class="p">[</span><span class="o">-</span><span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">])</span>
</pre></div>
</div>
<p>creates</p>
<p>(<a class="reference external" href="../users/plotting/examples/demo_gridspec03.py">Source code</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec03.png">png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec03.hires.png">hires.png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec03.pdf">pdf</a>)</p>
<div class="figure">
<img alt="../_images/demo_gridspec03.png" src="../_images/demo_gridspec03.png" />
</div>
</div>
<div class="section" id="gridspec-using-subplotspec">
<h2>GridSpec using SubplotSpec<a class="headerlink" href="#gridspec-using-subplotspec" title="Permalink to this headline">¶</a></h2>
<p>You can create GridSpec from the SubplotSpec, in which case its layout
parameters are set to that of the location of the given SubplotSpec.</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">gs0</span> <span class="o">=</span> <span class="n">gridspec</span><span class="o">.</span><span class="n">GridSpec</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
<span class="n">gs00</span> <span class="o">=</span> <span class="n">gridspec</span><span class="o">.</span><span class="n">GridSpecFromSubplotSpec</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="n">subplot_spec</span><span class="o">=</span><span class="n">gs0</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">gs01</span> <span class="o">=</span> <span class="n">gridspec</span><span class="o">.</span><span class="n">GridSpecFromSubplotSpec</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="n">subplot_spec</span><span class="o">=</span><span class="n">gs0</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
</pre></div>
</div>
<p>(<a class="reference external" href="../users/plotting/examples/demo_gridspec04.py">Source code</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec04.png">png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec04.hires.png">hires.png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec04.pdf">pdf</a>)</p>
<div class="figure">
<img alt="../_images/demo_gridspec04.png" src="../_images/demo_gridspec04.png" />
</div>
</div>
<div class="section" id="a-complex-nested-gridspec-using-subplotspec">
<h2>A Complex Nested GridSpec using SubplotSpec<a class="headerlink" href="#a-complex-nested-gridspec-using-subplotspec" title="Permalink to this headline">¶</a></h2>
<p>Here’s a more sophisticated example of nested gridspec where we put
a box around each cell of the outer 4x4 grid, by hiding appropriate
spines in each of the inner 3x3 grids.</p>
<p>(<a class="reference external" href="../users/plotting/examples/demo_gridspec06.py">Source code</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec06.png">png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec06.hires.png">hires.png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec06.pdf">pdf</a>)</p>
<div class="figure">
<img alt="../_images/demo_gridspec06.png" src="../_images/demo_gridspec06.png" />
</div>
</div>
<div class="section" id="gridspec-with-varying-cell-sizes">
<h2>GridSpec with Varying Cell Sizes<a class="headerlink" href="#gridspec-with-varying-cell-sizes" title="Permalink to this headline">¶</a></h2>
<p>By default, GridSpec creates cells of equal sizes. You can adjust
relative heights and widths of rows and columns. Note that absolute
values are meaningless, only their relative ratios matter.</p>
<div class="highlight-python"><div class="highlight"><pre><span class="n">gs</span> <span class="o">=</span> <span class="n">gridspec</span><span class="o">.</span><span class="n">GridSpec</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span>
<span class="n">width_ratios</span><span class="o">=</span><span class="p">[</span><span class="mi">1</span><span class="p">,</span><span class="mi">2</span><span class="p">],</span>
<span class="n">height_ratios</span><span class="o">=</span><span class="p">[</span><span class="mi">4</span><span class="p">,</span><span class="mi">1</span><span class="p">]</span>
<span class="p">)</span>
<span class="n">ax1</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="mi">0</span><span class="p">])</span>
<span class="n">ax2</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="mi">1</span><span class="p">])</span>
<span class="n">ax3</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="mi">2</span><span class="p">])</span>
<span class="n">ax4</span> <span class="o">=</span> <span class="n">plt</span><span class="o">.</span><span class="n">subplot</span><span class="p">(</span><span class="n">gs</span><span class="p">[</span><span class="mi">3</span><span class="p">])</span>
</pre></div>
</div>
<p>(<a class="reference external" href="../users/plotting/examples/demo_gridspec05.py">Source code</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec05.png">png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec05.hires.png">hires.png</a>, <a class="reference external" href="../users/plotting/examples/demo_gridspec05.pdf">pdf</a>)</p>
<div class="figure">
<img alt="../_images/demo_gridspec05.png" src="../_images/demo_gridspec05.png" />
</div>
</div>
</div>
</div>
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