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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
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<div class="section" id="module-arrayfire.data">
<span id="arrayfire-data-module"></span><h1>arrayfire.data module<a class="headerlink" href="#module-arrayfire.data" title="Permalink to this headline">¶</a></h1>
<p>Functions to create and manipulate arrays.</p>
<dl class="function">
<dt id="arrayfire.data.constant">
<code class="descclassname">arrayfire.data.</code><code class="descname">constant</code><span class="sig-paren">(</span><em>val</em>, <em>d0</em>, <em>d1=None</em>, <em>d2=None</em>, <em>d3=None</em>, <em>dtype=<Dtype.f32: 0></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#constant"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.constant" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a multi dimensional array whose elements contain the same value.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>val</strong> : scalar.</p>
<blockquote>
<div><p>Value of each element of the constant array.</p>
</div></blockquote>
<p><strong>d0</strong> : int.</p>
<blockquote>
<div><p>Length of first dimension.</p>
</div></blockquote>
<p><strong>d1</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of second dimension.</p>
</div></blockquote>
<p><strong>d2</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of third dimension.</p>
</div></blockquote>
<p><strong>d3</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of fourth dimension.</p>
</div></blockquote>
<p><strong>dtype</strong> : optional: af.Dtype. default: af.Dtype.f32.</p>
<blockquote>
<div><p>Data type of the array.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><p>Multi dimensional array whose elements are of value <cite>val</cite>.
- If d1 is None, <cite>out</cite> is 1D of size (d0,).
- If d1 is not None and d2 is None, <cite>out</cite> is 2D of size (d0, d1).
- If d1 and d2 are not None and d3 is None, <cite>out</cite> is 3D of size (d0, d1, d2).
- If d1, d2, d3 are all not None, <cite>out</cite> is 4D of size (d0, d1, d2, d3).</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.diag">
<code class="descclassname">arrayfire.data.</code><code class="descname">diag</code><span class="sig-paren">(</span><em>a</em>, <em>num=0</em>, <em>extract=True</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#diag"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.diag" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a diagonal matrix or Extract the diagonal from a matrix.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>a</strong> : af.Array.</p>
<blockquote>
<div><p>1 dimensional or 2 dimensional arrayfire array.</p>
</div></blockquote>
<p><strong>num</strong> : optional: int. default: 0.</p>
<blockquote>
<div><p>The index of the diagonal.
- num == 0 signifies the diagonal.
- num > 0 signifies super diagonals.
- num < 0 signifies sub diagonals.</p>
</div></blockquote>
<p><strong>extract</strong> : optional: bool. default: True.</p>
<blockquote>
<div><ul class="simple">
<li>If True , diagonal is extracted. <cite>a</cite> has to be 2D.</li>
<li>If False, diagonal matrix is created. <cite>a</cite> has to be 1D.</li>
</ul>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>if extract is True, <cite>out</cite> contains the num’th diagonal from <cite>a</cite>.</li>
<li>if extract is False, <cite>out</cite> contains <cite>a</cite> as the num’th diagonal.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.flat">
<code class="descclassname">arrayfire.data.</code><code class="descname">flat</code><span class="sig-paren">(</span><em>a</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#flat"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.flat" title="Permalink to this definition">¶</a></dt>
<dd><p>Flatten the input array.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>a</strong> : af.Array.</p>
<blockquote>
<div><p>Multi dimensional array.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>1 dimensional array containing all the elements from <cite>a</cite>.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.flip">
<code class="descclassname">arrayfire.data.</code><code class="descname">flip</code><span class="sig-paren">(</span><em>a</em>, <em>dim=0</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#flip"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.flip" title="Permalink to this definition">¶</a></dt>
<dd><p>Flip an array along a dimension.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>a</strong> : af.Array.</p>
<blockquote>
<div><p>Multi dimensional array.</p>
</div></blockquote>
<p><strong>dim</strong> : optional: int. default: 0.</p>
<blockquote>
<div><p>The dimension along which the flip is performed.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><p>The output after flipping <cite>a</cite> along <cite>dim</cite>.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">arrayfire</span> <span class="k">as</span> <span class="nn">af</span>
<span class="gp">>>> </span><span class="n">a</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">randu</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="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.7269 0.3569 0.3341</span>
<span class="go"> 0.7104 0.1437 0.0899</span>
<span class="go"> 0.5201 0.4563 0.5363</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.5201 0.4563 0.5363</span>
<span class="go"> 0.7104 0.1437 0.0899</span>
<span class="go"> 0.7269 0.3569 0.3341</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.3341 0.3569 0.7269</span>
<span class="go"> 0.0899 0.1437 0.7104</span>
<span class="go"> 0.5363 0.4563 0.5201</span>
</pre></div>
</div>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.identity">
<code class="descclassname">arrayfire.data.</code><code class="descname">identity</code><span class="sig-paren">(</span><em>d0</em>, <em>d1</em>, <em>d2=None</em>, <em>d3=None</em>, <em>dtype=<Dtype.f32: 0></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#identity"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.identity" title="Permalink to this definition">¶</a></dt>
<dd><p>Create an identity matrix or batch of identity matrices.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>d0</strong> : int.</p>
<blockquote>
<div><p>Length of first dimension.</p>
</div></blockquote>
<p><strong>d1</strong> : int.</p>
<blockquote>
<div><p>Length of second dimension.</p>
</div></blockquote>
<p><strong>d2</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of third dimension.</p>
</div></blockquote>
<p><strong>d3</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of fourth dimension.</p>
</div></blockquote>
<p><strong>dtype</strong> : optional: af.Dtype. default: af.Dtype.f32.</p>
<blockquote>
<div><p>Data type of the array.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><p>Multi dimensional array whose first two dimensions form a identity matrix.
- If d2 is None, <cite>out</cite> is 2D of size (d0, d1).
- If d2 is not None and d3 is None, <cite>out</cite> is 3D of size (d0, d1, d2).
- If d2, d3 are not None, <cite>out</cite> is 4D of size (d0, d1, d2, d3).</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.iota">
<code class="descclassname">arrayfire.data.</code><code class="descname">iota</code><span class="sig-paren">(</span><em>d0</em>, <em>d1=None</em>, <em>d2=None</em>, <em>d3=None</em>, <em>dim=-1</em>, <em>tile_dims=None</em>, <em>dtype=<Dtype.f32: 0></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#iota"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.iota" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a multi dimensional array using the number of elements in the array as the range.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>val</strong> : scalar.</p>
<blockquote>
<div><p>Value of each element of the constant array.</p>
</div></blockquote>
<p><strong>d0</strong> : int.</p>
<blockquote>
<div><p>Length of first dimension.</p>
</div></blockquote>
<p><strong>d1</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of second dimension.</p>
</div></blockquote>
<p><strong>d2</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of third dimension.</p>
</div></blockquote>
<p><strong>d3</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of fourth dimension.</p>
</div></blockquote>
<p><strong>tile_dims</strong> : optional: tuple of ints. default: None.</p>
<blockquote>
<div><p>The number of times the data is tiled.</p>
</div></blockquote>
<p><strong>dtype</strong> : optional: af.Dtype. default: af.Dtype.f32.</p>
<blockquote>
<div><p>Data type of the array.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><p>Multi dimensional array whose elements are along <cite>dim</cite> fall between [0 - self.elements() - 1].</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">arrayfire</span> <span class="k">as</span> <span class="nn">af</span>
<span class="gp">>>> </span><span class="kn">import</span> <span class="nn">arrayfire</span> <span class="k">as</span> <span class="nn">af</span>
<span class="gp">>>> </span><span class="n">a</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">iota</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="c1"># tile_dim is not specified, data is not tiled</span>
<span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="c1"># the elements range from [0 - 8] (9 elements)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.0000 3.0000 6.0000</span>
<span class="go"> 1.0000 4.0000 7.0000</span>
<span class="go"> 2.0000 5.0000 8.0000</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">b</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">iota</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">tile_dims</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="c1"># Asking to tile along second dimension.</span>
<span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
<span class="go">[3 6 1 1]</span>
<span class="go"> 0.0000 3.0000 6.0000 0.0000 3.0000 6.0000</span>
<span class="go"> 1.0000 4.0000 7.0000 1.0000 4.0000 7.0000</span>
<span class="go"> 2.0000 5.0000 8.0000 2.0000 5.0000 8.0000</span>
</pre></div>
</div>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.join">
<code class="descclassname">arrayfire.data.</code><code class="descname">join</code><span class="sig-paren">(</span><em>dim</em>, <em>first</em>, <em>second</em>, <em>third=None</em>, <em>fourth=None</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#join"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.join" title="Permalink to this definition">¶</a></dt>
<dd><p>Join two or more arrayfire arrays along a specified dimension.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>dim: int.</strong></p>
<blockquote>
<div><p>Dimension along which the join occurs.</p>
</div></blockquote>
<p><strong>first</strong> : af.Array.</p>
<blockquote>
<div><p>Multi dimensional arrayfire array.</p>
</div></blockquote>
<p><strong>second</strong> : af.Array.</p>
<blockquote>
<div><p>Multi dimensional arrayfire array.</p>
</div></blockquote>
<p><strong>third</strong> : optional: af.Array. default: None.</p>
<blockquote>
<div><p>Multi dimensional arrayfire array.</p>
</div></blockquote>
<p><strong>fourth</strong> : optional: af.Array. default: None.</p>
<blockquote>
<div><p>Multi dimensional arrayfire array.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><p>An array containing the input arrays joined along the specified dimension.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">arrayfire</span> <span class="k">as</span> <span class="nn">af</span>
<span class="gp">>>> </span><span class="n">a</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">randu</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">b</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">randu</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">d</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
<span class="go">[2 3 1 1]</span>
<span class="go"> 0.9508 0.2591 0.7928</span>
<span class="go"> 0.5367 0.8359 0.8719</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
<span class="go">[2 3 1 1]</span>
<span class="go"> 0.3266 0.6009 0.2442</span>
<span class="go"> 0.6275 0.0495 0.6591</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="go">[4 3 1 1]</span>
<span class="go"> 0.9508 0.2591 0.7928</span>
<span class="go"> 0.5367 0.8359 0.8719</span>
<span class="go"> 0.3266 0.6009 0.2442</span>
<span class="go"> 0.6275 0.0495 0.6591</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">d</span><span class="p">)</span>
<span class="go">[2 6 1 1]</span>
<span class="go"> 0.9508 0.2591 0.7928 0.3266 0.6009 0.2442</span>
<span class="go"> 0.5367 0.8359 0.8719 0.6275 0.0495 0.6591</span>
</pre></div>
</div>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.lower">
<code class="descclassname">arrayfire.data.</code><code class="descname">lower</code><span class="sig-paren">(</span><em>a</em>, <em>is_unit_diag=False</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#lower"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.lower" title="Permalink to this definition">¶</a></dt>
<dd><p>Extract the lower triangular matrix from the input.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>a</strong> : af.Array.</p>
<blockquote>
<div><p>Multi dimensional array.</p>
</div></blockquote>
<p><strong>is_unit_diag: optional: bool. default: False.</strong></p>
<blockquote>
<div><p>Flag specifying if the diagonal elements are 1.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><p>An array containing the lower triangular elements from <cite>a</cite>.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.moddims">
<code class="descclassname">arrayfire.data.</code><code class="descname">moddims</code><span class="sig-paren">(</span><em>a</em>, <em>d0</em>, <em>d1=1</em>, <em>d2=1</em>, <em>d3=1</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#moddims"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.moddims" title="Permalink to this definition">¶</a></dt>
<dd><p>Modify the shape of the array without changing the data layout.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>a</strong> : af.Array.</p>
<blockquote>
<div><p>Multi dimensional array.</p>
</div></blockquote>
<p><strong>d0: int.</strong></p>
<blockquote>
<div><p>The first dimension of output.</p>
</div></blockquote>
<p><strong>d1: optional: int. default: 1.</strong></p>
<blockquote>
<div><p>The second dimension of output.</p>
</div></blockquote>
<p><strong>d2: optional: int. default: 1.</strong></p>
<blockquote>
<div><p>The third dimension of output.</p>
</div></blockquote>
<p><strong>d3: optional: int. default: 1.</strong></p>
<blockquote>
<div><p>The fourth dimension of output.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>An containing the same data as <cite>a</cite> with the specified shape.</li>
<li>The number of elements in <cite>a</cite> must match <cite>d0 x d1 x d2 x d3</cite>.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.range">
<code class="descclassname">arrayfire.data.</code><code class="descname">range</code><span class="sig-paren">(</span><em>d0</em>, <em>d1=None</em>, <em>d2=None</em>, <em>d3=None</em>, <em>dim=0</em>, <em>dtype=<Dtype.f32: 0></em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#range"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.range" title="Permalink to this definition">¶</a></dt>
<dd><p>Create a multi dimensional array using length of a dimension as range.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>val</strong> : scalar.</p>
<blockquote>
<div><p>Value of each element of the constant array.</p>
</div></blockquote>
<p><strong>d0</strong> : int.</p>
<blockquote>
<div><p>Length of first dimension.</p>
</div></blockquote>
<p><strong>d1</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of second dimension.</p>
</div></blockquote>
<p><strong>d2</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of third dimension.</p>
</div></blockquote>
<p><strong>d3</strong> : optional: int. default: None.</p>
<blockquote>
<div><p>Length of fourth dimension.</p>
</div></blockquote>
<p><strong>dim</strong> : optional: int. default: 0.</p>
<blockquote>
<div><p>The dimension along which the range is calculated.</p>
</div></blockquote>
<p><strong>dtype</strong> : optional: af.Dtype. default: af.Dtype.f32.</p>
<blockquote>
<div><p>Data type of the array.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><p>Multi dimensional array whose elements are along <cite>dim</cite> fall between [0 - self.dims[dim]-1]
- If d1 is None, <cite>out</cite> is 1D of size (d0,).
- If d1 is not None and d2 is None, <cite>out</cite> is 2D of size (d0, d1).
- If d1 and d2 are not None and d3 is None, <cite>out</cite> is 3D of size (d0, d1, d2).
- If d1, d2, d3 are all not None, <cite>out</cite> is 4D of size (d0, d1, d2, d3).</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">arrayfire</span> <span class="k">as</span> <span class="nn">af</span>
<span class="gp">>>> </span><span class="n">a</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">range</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span> <span class="c1"># dim is not specified, range is along first dimension.</span>
<span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="c1"># The data ranges from [0 - 2] (3 elements along first dimension)</span>
<span class="go">[3 2 1 1]</span>
<span class="go"> 0.0000 0.0000</span>
<span class="go"> 1.0000 1.0000</span>
<span class="go"> 2.0000 2.0000</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">a</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">range</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="n">dim</span><span class="o">=</span><span class="mi">1</span><span class="p">)</span> <span class="c1"># dim is 1, range is along second dimension.</span>
<span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span> <span class="c1"># The data ranges from [0 - 1] (2 elements along second dimension)</span>
<span class="go">[3 2 1 1]</span>
<span class="go"> 0.0000 1.0000</span>
<span class="go"> 0.0000 1.0000</span>
<span class="go"> 0.0000 1.0000</span>
</pre></div>
</div>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.reorder">
<code class="descclassname">arrayfire.data.</code><code class="descname">reorder</code><span class="sig-paren">(</span><em>a</em>, <em>d0=1</em>, <em>d1=0</em>, <em>d2=2</em>, <em>d3=3</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#reorder"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.reorder" title="Permalink to this definition">¶</a></dt>
<dd><p>Reorder the dimensions of the input.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>a</strong> : af.Array.</p>
<blockquote>
<div><p>Multi dimensional array.</p>
</div></blockquote>
<p><strong>d0: optional: int. default: 1.</strong></p>
<blockquote>
<div><p>The location of the first dimension in the output.</p>
</div></blockquote>
<p><strong>d1: optional: int. default: 0.</strong></p>
<blockquote>
<div><p>The location of the second dimension in the output.</p>
</div></blockquote>
<p><strong>d2: optional: int. default: 2.</strong></p>
<blockquote>
<div><p>The location of the third dimension in the output.</p>
</div></blockquote>
<p><strong>d3: optional: int. default: 3.</strong></p>
<blockquote>
<div><p>The location of the fourth dimension in the output.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>An array containing the input aftern reordering its dimensions.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">arrayfire</span> <span class="k">as</span> <span class="nn">af</span>
<span class="gp">>>> </span><span class="n">a</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">randu</span><span class="p">(</span><span class="mi">5</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
<span class="go">[5 5 3 1]</span>
<span class="go"> 0.4107 0.0081 0.6600 0.1046 0.8395</span>
<span class="go"> 0.8224 0.3775 0.0764 0.8827 0.1933</span>
<span class="go"> 0.9518 0.3027 0.0901 0.1647 0.7270</span>
<span class="go"> 0.1794 0.6456 0.5933 0.8060 0.0322</span>
<span class="go"> 0.4198 0.5591 0.1098 0.5938 0.0012</span>
</pre></div>
</div>
<blockquote>
<div><p>0.8703 0.9250 0.4387 0.6530 0.4224
0.5259 0.3063 0.3784 0.5476 0.5293
0.1443 0.9313 0.4002 0.8577 0.0212
0.3253 0.8684 0.4390 0.8370 0.1103
0.5081 0.6592 0.4718 0.0618 0.4420</p>
<p>0.8355 0.6767 0.1033 0.9426 0.9276
0.4878 0.6742 0.2119 0.4817 0.8662
0.2055 0.4523 0.5955 0.9097 0.3578
0.1794 0.1236 0.3745 0.6821 0.6263
0.5606 0.7924 0.9165 0.6056 0.9747</p>
</div></blockquote>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">b</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">reorder</span><span class="p">(</span><span class="n">a</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">1</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
<span class="go">[3 5 5 1]</span>
<span class="go"> 0.4107 0.8224 0.9518 0.1794 0.4198</span>
<span class="go"> 0.8703 0.5259 0.1443 0.3253 0.5081</span>
<span class="go"> 0.8355 0.4878 0.2055 0.1794 0.5606</span>
</pre></div>
</div>
<blockquote>
<div><p>0.0081 0.3775 0.3027 0.6456 0.5591
0.9250 0.3063 0.9313 0.8684 0.6592
0.6767 0.6742 0.4523 0.1236 0.7924</p>
<p>0.6600 0.0764 0.0901 0.5933 0.1098
0.4387 0.3784 0.4002 0.4390 0.4718
0.1033 0.2119 0.5955 0.3745 0.9165</p>
<p>0.1046 0.8827 0.1647 0.8060 0.5938
0.6530 0.5476 0.8577 0.8370 0.0618
0.9426 0.4817 0.9097 0.6821 0.6056</p>
<p>0.8395 0.1933 0.7270 0.0322 0.0012
0.4224 0.5293 0.0212 0.1103 0.4420
0.9276 0.8662 0.3578 0.6263 0.9747</p>
</div></blockquote>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.replace">
<code class="descclassname">arrayfire.data.</code><code class="descname">replace</code><span class="sig-paren">(</span><em>lhs</em>, <em>cond</em>, <em>rhs</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#replace"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.replace" title="Permalink to this definition">¶</a></dt>
<dd><p>Select elements from one of two arrays based on condition.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>lhs</strong> : af.Array or scalar</p>
<blockquote>
<div><p>numerical array whose elements are replaced with <cite>rhs</cite> when conditional element is False</p>
</div></blockquote>
<p><strong>cond</strong> : af.Array</p>
<blockquote>
<div><p>Conditional array</p>
</div></blockquote>
<p><strong>rhs</strong> : af.Array or scalar</p>
<blockquote class="last">
<div><p>numerical array whose elements are picked when conditional element is False</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">arrayfire</span> <span class="k">as</span> <span class="nn">af</span>
<span class="gp">>>> </span><span class="n">a</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">randu</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="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.4107 0.1794 0.3775</span>
<span class="go"> 0.8224 0.4198 0.3027</span>
<span class="go"> 0.9518 0.0081 0.6456</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">cond</span> <span class="o">=</span> <span class="p">(</span><span class="n">a</span> <span class="o">>=</span> <span class="mf">0.25</span><span class="p">)</span> <span class="o">&</span> <span class="p">(</span><span class="n">a</span> <span class="o"><=</span> <span class="mf">0.75</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">cond</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 1 0 1</span>
<span class="go"> 0 1 1</span>
<span class="go"> 0 0 1</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">replace</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="n">cond</span><span class="p">,</span> <span class="mf">0.3333</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.3333 0.1794 0.3333</span>
<span class="go"> 0.8224 0.3333 0.3333</span>
<span class="go"> 0.9518 0.0081 0.3333</span>
</pre></div>
</div>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.select">
<code class="descclassname">arrayfire.data.</code><code class="descname">select</code><span class="sig-paren">(</span><em>cond</em>, <em>lhs</em>, <em>rhs</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#select"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.select" title="Permalink to this definition">¶</a></dt>
<dd><p>Select elements from one of two arrays based on condition.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>cond</strong> : af.Array</p>
<blockquote>
<div><p>Conditional array</p>
</div></blockquote>
<p><strong>lhs</strong> : af.Array or scalar</p>
<blockquote>
<div><p>numerical array whose elements are picked when conditional element is True</p>
</div></blockquote>
<p><strong>rhs</strong> : af.Array or scalar</p>
<blockquote>
<div><p>numerical array whose elements are picked when conditional element is False</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">out: af.Array</p>
<blockquote class="last">
<div><p>An array containing elements from <cite>lhs</cite> when <cite>cond</cite> is True and <cite>rhs</cite> when False.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">arrayfire</span> <span class="k">as</span> <span class="nn">af</span>
<span class="gp">>>> </span><span class="n">a</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">randu</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="gp">>>> </span><span class="n">b</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">randu</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="gp">>>> </span><span class="n">cond</span> <span class="o">=</span> <span class="n">a</span> <span class="o">></span> <span class="n">b</span>
<span class="gp">>>> </span><span class="n">res</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">select</span><span class="p">(</span><span class="n">cond</span><span class="p">,</span> <span class="n">a</span><span class="p">,</span> <span class="n">b</span><span class="p">)</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.4107 0.1794 0.3775</span>
<span class="go"> 0.8224 0.4198 0.3027</span>
<span class="go"> 0.9518 0.0081 0.6456</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.7269 0.3569 0.3341</span>
<span class="go"> 0.7104 0.1437 0.0899</span>
<span class="go"> 0.5201 0.4563 0.5363</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">res</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.7269 0.3569 0.3775</span>
<span class="go"> 0.8224 0.4198 0.3027</span>
<span class="go"> 0.9518 0.4563 0.6456</span>
</pre></div>
</div>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.shift">
<code class="descclassname">arrayfire.data.</code><code class="descname">shift</code><span class="sig-paren">(</span><em>a</em>, <em>d0</em>, <em>d1=0</em>, <em>d2=0</em>, <em>d3=0</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#shift"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.shift" title="Permalink to this definition">¶</a></dt>
<dd><p>Shift the input along each dimension.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>a</strong> : af.Array.</p>
<blockquote>
<div><p>Multi dimensional array.</p>
</div></blockquote>
<p><strong>d0: int.</strong></p>
<blockquote>
<div><p>The amount of shift along first dimension.</p>
</div></blockquote>
<p><strong>d1: optional: int. default: 0.</strong></p>
<blockquote>
<div><p>The amount of shift along second dimension.</p>
</div></blockquote>
<p><strong>d2: optional: int. default: 0.</strong></p>
<blockquote>
<div><p>The amount of shift along third dimension.</p>
</div></blockquote>
<p><strong>d3: optional: int. default: 0.</strong></p>
<blockquote>
<div><p>The amount of shift along fourth dimension.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><ul class="simple">
<li>An array the same shape as <cite>a</cite> after shifting it by the specified amounts.</li>
</ul>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">arrayfire</span> <span class="k">as</span> <span class="nn">af</span>
<span class="gp">>>> </span><span class="n">a</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">randu</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="gp">>>> </span><span class="n">b</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">shift</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">shift</span><span class="p">(</span><span class="n">a</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="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.7269 0.3569 0.3341</span>
<span class="go"> 0.7104 0.1437 0.0899</span>
<span class="go"> 0.5201 0.4563 0.5363</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.7104 0.1437 0.0899</span>
<span class="go"> 0.5201 0.4563 0.5363</span>
<span class="go"> 0.7269 0.3569 0.3341</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="go">[3 3 1 1]</span>
<span class="go"> 0.4563 0.5363 0.5201</span>
<span class="go"> 0.3569 0.3341 0.7269</span>
<span class="go"> 0.1437 0.0899 0.7104</span>
</pre></div>
</div>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.tile">
<code class="descclassname">arrayfire.data.</code><code class="descname">tile</code><span class="sig-paren">(</span><em>a</em>, <em>d0</em>, <em>d1=1</em>, <em>d2=1</em>, <em>d3=1</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#tile"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.tile" title="Permalink to this definition">¶</a></dt>
<dd><p>Tile an array along specified dimensions.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>a</strong> : af.Array.</p>
<blockquote>
<div><p>Multi dimensional array.</p>
</div></blockquote>
<p><strong>d0: int.</strong></p>
<blockquote>
<div><p>The number of times <cite>a</cite> has to be tiled along first dimension.</p>
</div></blockquote>
<p><strong>d1: optional: int. default: 1.</strong></p>
<blockquote>
<div><p>The number of times <cite>a</cite> has to be tiled along second dimension.</p>
</div></blockquote>
<p><strong>d2: optional: int. default: 1.</strong></p>
<blockquote>
<div><p>The number of times <cite>a</cite> has to be tiled along third dimension.</p>
</div></blockquote>
<p><strong>d3: optional: int. default: 1.</strong></p>
<blockquote>
<div><p>The number of times <cite>a</cite> has to be tiled along fourth dimension.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><p>An array containing the input after tiling the the specified number of times.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
<p class="rubric">Examples</p>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="kn">import</span> <span class="nn">arrayfire</span> <span class="k">as</span> <span class="nn">af</span>
<span class="gp">>>> </span><span class="n">a</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">randu</span><span class="p">(</span><span class="mi">2</span><span class="p">,</span> <span class="mi">3</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">b</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">tile</span><span class="p">(</span><span class="n">a</span><span class="p">,</span> <span class="mi">2</span><span class="p">)</span>
<span class="gp">>>> </span><span class="n">c</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">tile</span><span class="p">(</span><span class="n">a</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="gp">>>> </span><span class="n">d</span> <span class="o">=</span> <span class="n">af</span><span class="o">.</span><span class="n">tile</span><span class="p">(</span><span class="n">a</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="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">a</span><span class="p">)</span>
<span class="go">[2 3 1 1]</span>
<span class="go"> 0.9508 0.2591 0.7928</span>
<span class="go"> 0.5367 0.8359 0.8719</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">b</span><span class="p">)</span>
<span class="go">[4 3 1 1]</span>
<span class="go"> 0.4107 0.9518 0.4198</span>
<span class="go"> 0.8224 0.1794 0.0081</span>
<span class="go"> 0.4107 0.9518 0.4198</span>
<span class="go"> 0.8224 0.1794 0.0081</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">c</span><span class="p">)</span>
<span class="go">[2 6 1 1]</span>
<span class="go"> 0.4107 0.9518 0.4198 0.4107 0.9518 0.4198</span>
<span class="go"> 0.8224 0.1794 0.0081 0.8224 0.1794 0.0081</span>
</pre></div>
</div>
<div class="highlight-default"><div class="highlight"><pre><span></span><span class="gp">>>> </span><span class="n">af</span><span class="o">.</span><span class="n">display</span><span class="p">(</span><span class="n">d</span><span class="p">)</span>
<span class="go">[4 6 1 1]</span>
<span class="go"> 0.4107 0.9518 0.4198 0.4107 0.9518 0.4198</span>
<span class="go"> 0.8224 0.1794 0.0081 0.8224 0.1794 0.0081</span>
<span class="go"> 0.4107 0.9518 0.4198 0.4107 0.9518 0.4198</span>
<span class="go"> 0.8224 0.1794 0.0081 0.8224 0.1794 0.0081</span>
</pre></div>
</div>
</dd></dl>
<dl class="function">
<dt id="arrayfire.data.upper">
<code class="descclassname">arrayfire.data.</code><code class="descname">upper</code><span class="sig-paren">(</span><em>a</em>, <em>is_unit_diag=False</em><span class="sig-paren">)</span><a class="reference internal" href="_modules/arrayfire/data.html#upper"><span class="viewcode-link">[source]</span></a><a class="headerlink" href="#arrayfire.data.upper" title="Permalink to this definition">¶</a></dt>
<dd><p>Extract the upper triangular matrix from the input.</p>
<table class="docutils field-list" frame="void" rules="none">
<col class="field-name" />
<col class="field-body" />
<tbody valign="top">
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><p class="first"><strong>a</strong> : af.Array.</p>
<blockquote>
<div><p>Multi dimensional array.</p>
</div></blockquote>
<p><strong>is_unit_diag: optional: bool. default: False.</strong></p>
<blockquote>
<div><p>Flag specifying if the diagonal elements are 1.</p>
</div></blockquote>
</td>
</tr>
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first"><strong>out</strong> : af.Array</p>
<blockquote class="last">
<div><p>An array containing the upper triangular elements from <cite>a</cite>.</p>
</div></blockquote>
</td>
</tr>
</tbody>
</table>
</dd></dl>
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