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<TITLE>Index ranges</TITLE>
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<P><font size="+3" color="green"><B>Index ranges</B></font></P>
<P>
Index ranges are <em>not</em> allowed on scalars, matrices or tensors, but
subsets of vectors or string variables may be eliminated by including an
index range. For example:</P>
<P>
<CODE><font color="blue">DESTROY X[5:25:5] Y[IDX] S[1:5] T[2][1:10]</font></CODE></P>
<P>
will eliminate elements <CODE>5, 10, 15,</CODE> and <CODE>25</CODE> from
vector <CODE>X</CODE>. If <CODE>IDX</CODE> is a vector, then
<CODE>Y[IDX[1]]</CODE>, <CODE>Y[IDX[2]]</CODE>,
… <CODE>Y[IDX[#]]</CODE> will be eliminated. If
<CODE>S</CODE> is a string variable, characters <CODE>1</CODE> through
<CODE>5</CODE> will be eliminated. If <CODE>T</CODE> is a string array
variable, then characters <CODE>2</CODE> through <CODE>10</CODE> of string
<CODE>2</CODE> will be eliminated.</P>
<P>
<a href="expand.htm"><img src="../shadow_left.gif">
<font size="+1" color="olive">Expanded names</font></a><br />
<a href="variableclasses.htm"><img src="../shadow_right.gif">
<font size="+1" color="olive">Destroy entire classes of variables</font></a></P>
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