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<A NAME=augment_columns>

<TITLE>augment_columns</TITLE></A>
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<B>AUGMENT_COLUMNS</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>operator</B><P>
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Augment columns, stack rows: 
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syntax: </H3>
<em>augment_columns</em>(&lt;matrix&gt;,&lt;column\_list&gt;) 
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&lt;matrix&gt; :- a matrix. 
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&lt;column\_list&gt; :- either a positive integer or a list of positive 
 integers. 
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<em>augment_columns</em>gets hold of the columns of &lt;matrix&gt; 
specified in <em>column_list</em> and sticks them together. 
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<em>stack_rows</em>performs the same task on rows of &lt;matrix&gt;. 
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examples: </H3>
<P><PRE><TT>

augment_columns(A,{1,2}) 

   
  [1  2]
  [    ]
  [4  5]
  [    ]
  [7  8]



stack_rows(A,{1,3}) 

  [1  2  3]
  [       ]
  [7  8  9]

</TT></PRE><P>Related functions: 

<A HREF=r37_0589.html>get_columns</A>, 
<A HREF=r37_0590.html>get_rows</A>, 
<A HREF=r37_0615.html>sub_matrix</A>. 
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