augment_columns INDEX

AUGMENT_COLUMNS _ _ _ _ _ _ _ _ _ _ _ _ operator

Augment columns, stack rows:

syntax:

augment_columns(<matrix>,<column\_list>)

<matrix> :- a matrix.

<column\_list> :- either a positive integer or a list of positive integers.

augment_columnsgets hold of the columns of <matrix> specified in column_list and sticks them together.

stack_rowsperforms the same task on rows of <matrix>.

examples:



augment_columns(A,{1,2}) 

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



stack_rows(A,{1,3}) 

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

Related functions: get_columns, get_rows, sub_matrix.