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Next: <a href="TEMPORARY.html#TEMPORARY" accesskey="n" rel="next">TEMPORARY</a>, Previous: <a href="SELECT-IF.html#SELECT-IF" accesskey="p" rel="prev">SELECT IF</a>, Up: <a href="Data-Selection.html#Data-Selection" accesskey="u" rel="up">Data Selection</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Function-Index.html#Function-Index" title="Index" rel="index">Index</a>]</p>
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<h3 class="section">13.5 SPLIT FILE</h3>
<a name="index-SPLIT-FILE"></a>
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<pre class="display">SPLIT FILE [{LAYERED, SEPARATE}] BY <var>var_list</var>.
SPLIT FILE OFF.
</pre></div>
<p><code>SPLIT FILE</code> allows multiple sets of data present in one data
file to be analyzed separately using single statistical procedure
commands.
</p>
<p>Specify a list of variable names to analyze multiple sets of
data separately. Groups of adjacent cases having the same values for these
variables are analyzed by statistical procedure commands as one group.
An independent analysis is carried out for each group of cases, and the
variable values for the group are printed along with the analysis.
</p>
<p>When a list of variable names is specified, one of the keywords
<code>LAYERED</code> or <code>SEPARATE</code> may also be specified. If provided, either
keyword are ignored.
</p>
<p>Groups are formed only by <em>adjacent</em> cases. To create a split
using a variable where like values are not adjacent in the working file,
you should first sort the data by that variable (see <a href="SORT-CASES.html#SORT-CASES">SORT CASES</a>).
</p>
<p>Specify <code>OFF</code> to disable <code>SPLIT FILE</code> and resume analysis of the
entire active dataset as a single group of data.
</p>
<p>When <code>SPLIT FILE</code> is specified after <code>TEMPORARY</code>, it affects only
the next procedure (see <a href="TEMPORARY.html#TEMPORARY">TEMPORARY</a>).
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