elements before that jump.  It does
 this for all jumps it finds.  By a jump, I mean a discontinutity in the
 index.  For example, if the index vector is [1 2 3 4 5 8 9 10], there is
 a jump between 5 and 8.</pre></div>

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<h2><a name="_cross"></a>CROSS-REFERENCE INFORMATION <a href="#_top"><img alt="^" border="0" src="../../../../up.png"></a></h2>
This function calls:
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</ul>
This function is called by:
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