User`s guide

Submatrix
5-424
columns are to be included, this is equivalent to
y(1,:) = u(M/2-firstrow,:).
For columns, this specifies that the column of
u offset from column N/2 by the
Starting column offset parameter, firstcol, should be used as the first
column of
y. If all rows are to be included, this is equivalent to
y(:,1) = u(:,N/2-firstcol).
•
Middle
For rows, this specifies that the middle row of u should be used as the only
row of
y. If all columns are to be included, this is equivalent to y = u(M/2,:).
For columns, this specifies that the middle column of
u should be used as the
only column of
y. If all rows are to be included, this is equivalent to
y = u(:,N/2).
The
Ending row or Ending column can similarly be specified in five ways:
•
Index
For rows, this specifies that the row of u forward-indexed by the Ending row
index
parameter, lastrow, should be used as the last row of y. If all columns
are to be included, this is equivalent to
y(end,:) = u(lastrow,:).
For columns, this specifies that the column of
u forward-indexed by the
Ending column index parameter, lastcol, should be used as the last
column of
y. If all rows are to be included, this is equivalent to
y(:,end) = u(:,lastcol).
•
Offset from last
For rows, this specifies that the row of u offset from row M by the Ending
row offset
parameter, lastrow, should be used as the last row of y. If all
columns are to be included, this is equivalent to
y(end,:) = u(M-lastrow,:).
For columns, this specifies that the column of
u offset from column N by the
Ending column offset parameter, lastcol, should be used as the last
column of
y. If all rows are to be included, this is equivalent to
y(:,end) = u(:,N-lastcol).