PURPOSE:
--------
y = shiftr (A, row, shift) moves #row of matrix A to the right
by #shift positions.
INPUT ARGUMENTS:
----------------
'A' is the input matrix. ('A' can be a vector)
'row' is the number of the row to be shifted. If 'row' is zero,
then all rows in the matrix are shifted.
'shift' is the number of positions by which the row is shifted
to the right.
'type' is an optional argument.
The shifted matrix-elements are discarded if this argument
is 0 or is omitted,
then vacated spaces to the left are filled with zeroes.
The shifted matrix-elements are retained if 'type' is 1
or any other non-zero value,
then vacated spaces to the left are filled with the shifted
row-elements from the right (i.e. "wraparound").
EXAMPLES: A = [1 2 3 4 5;
--------- 6 7 8 9 0]
y = shiftr(A,0,2) --> [0 0 1 2 3;
0 0 6 7 8]
y = shiftr(A,1,2) --> [0 0 1 2 3;
6 7 8 9 0]
y = shiftr(A,1,2,0) --> [0 0 1 2 3;
6 7 8 9 0]
y = shiftr(A,1,2,1) --> [4 5 1 2 3;
6 7 8 9 0]
y = shiftr(A,0,2,1) --> [4 5 1 2 3;
9 0 6 7 8]
B = [1 2 3 4 5]
z = shiftr(B,1,3) --> [0 0 0 1 2]
SEE ALSO: shiftl, shiftu, shiftd.