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<a name="VECTOR"></a>
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<p>
Next: <a href="WRITE-FORMATS.html#WRITE-FORMATS" accesskey="n" rel="next">WRITE FORMATS</a>, Previous: <a href="VARIABLE-ROLE.html#VARIABLE-ROLE" accesskey="p" rel="prev">VARIABLE ROLE</a>, Up: <a href="Variable-Attributes.html#Variable-Attributes" accesskey="u" rel="up">Variable Attributes</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">11.21 VECTOR</h3>
<a name="index-VECTOR"></a>
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<pre class="display">Two possible syntaxes:
VECTOR <var>vec_name</var>=<var>var_list</var>.
VECTOR <var>vec_name_list</var>(<var>count</var> [<var>format</var>]).
</pre></div>
<p><code>VECTOR</code> allows a group of variables to be accessed as if they
were consecutive members of an array with a vector(index) notation.
</p>
<p>To make a vector out of a set of existing variables, specify a name
for the vector followed by an equals sign (‘<samp>=</samp>’) and the variables
to put in the vector. The variables must be all numeric or all
string, and string variables must have the same width.
</p>
<p>To make a vector and create variables at the same time, specify one or
more vector names followed by a count in parentheses. This will
create variables named <code><var>vec</var>1</code> through
<code><var>vec</var><var>count</var></code>. By default, the new variables are
numeric with format F8.2, but an alternate format may be specified
inside the parentheses before or after the count and separated from it
by white space or a comma. With a string format such as A8, the
variables will be string variables; with a numeric format, they will
be numeric. Variable names including the suffixes may not exceed 64
characters in length, and none of the variables may exist prior to
<code>VECTOR</code>.
</p>
<p>Vectors created with <code>VECTOR</code> disappear after any procedure or
procedure-like command is executed. The variables contained in the
vectors remain, unless they are scratch variables (see <a href="Scratch-Variables.html#Scratch-Variables">Scratch Variables</a>).
</p>
<p>Variables within a vector may be referenced in expressions using
<code>vector(index)</code> syntax.
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