| Usage: |
(xyline)=steps4plot(xy, xymin, xmax)
|
| Input: |
| xy | n x 2 matrix, coordinates of the jump points sorted
by the first column
|
| xymin | 1 x 2 matrix, coordinates of the starting point.
Default is the first jump point. Its x coordinate is
set to that of the first jump if specified as larger.
|
| xmax | scalar, x coordinate of the ending point Default is
by adding 1% of the x range to the last jump point.
Its x coordinate is set to that of the last first
jump if specified as smaller. Y coordinate of the
ending point is always that of the last jump point.
|
| Output: |
| xyline | 4*(n+1) x 2 matrix, the points to be connected into
step function. |