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<title>Processing Data in Cell Arrays - GNU Octave</title>
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<a name="Processing-Data-in-Cell-Arrays"></a>
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Previous: <a rel="previous" accesskey="p" href="Cell-Arrays-of-Strings.html#Cell-Arrays-of-Strings">Cell Arrays of Strings</a>,
Up: <a rel="up" accesskey="u" href="Cell-Arrays.html#Cell-Arrays">Cell Arrays</a>
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<h4 class="subsection">6.2.5 Processing Data in Cell Arrays</h4>
<p>Data that is stored in a cell array can be processed in several ways
depending on the actual data. The simplest way to process that data
is to iterate through it using one or more <code>for</code> loops. The same
idea can be implemented more easily through the use of the <code>cellfun</code>
function that calls a user-specified function on all elements of a cell
array. See <a href="doc_002dcellfun.html#doc_002dcellfun">doc-cellfun</a>.
<p>An alternative is to convert the data to a different container, such as
a matrix or a data structure. Depending on the data this is possible
using the <code>cell2mat</code> and <code>cell2struct</code> functions.
<!-- cell2mat scripts/general/cell2mat.m -->
<p><a name="doc_002dcell2mat"></a>
<div class="defun">
— Function File: <var>m</var> = <b>cell2mat</b> (<var>c</var>)<var><a name="index-cell2mat-472"></a></var><br>
<blockquote><p>Convert the cell array <var>c</var> into a matrix by concatenating all
elements of <var>c</var> into a hyperrectangle. Elements of <var>c</var> must
be numeric, logical or char matrices, or cell arrays, and <code>cat</code>
must be able to concatenate them together.
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<p class="noindent"><strong>See also:</strong> <a href="doc_002dmat2cell.html#doc_002dmat2cell">mat2cell</a>, <a href="doc_002dnum2cell.html#doc_002dnum2cell">num2cell</a>.
</p></blockquote></div>
<!-- cell2struct src/ov-struct.cc -->
<p><a name="doc_002dcell2struct"></a>
<div class="defun">
— Built-in Function: <b>cell2struct</b> (<var>cell, fields, dim</var>)<var><a name="index-cell2struct-473"></a></var><br>
<blockquote><p>Convert <var>cell</var> to a structure. The number of fields in <var>fields</var>
must match the number of elements in <var>cell</var> along dimension <var>dim</var>,
that is <code>numel (</code><var>fields</var><code>) == size (</code><var>cell</var><code>, </code><var>dim</var><code>)</code>.
If <var>dim</var> is omitted, a value of 1 is assumed.
<pre class="example"> A = cell2struct ({'Peter', 'Hannah', 'Robert';
185, 170, 168},
{'Name','Height'}, 1);
A(1)
⇒ ans =
{
Name = Peter
Height = 185
}
</pre>
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