Sets the grid orientation to horizontal and vertical.
GRIDHV(win1, win2, ..., winN)
Optional. Zero or more windows. Defaults to the current window.
displays horizontal and vertical, dashed grids when a series is displayed.
griddash(w1, w3, w4);gridhv(w1, w3, w4)
displays horizontal and vertical, dashed grids in W1, W3 and W4 when a series is displayed.
GRIDHV does not automatically set the grids to be visible. GRIDHV must be used in conjunction with GRIDSOL, GRIDDASH, GRIDDOT, the menus, or the [F6] toggle key.