GRID GRID Plot Grid Toggle Function Usage Toggles the drawing of grid lines on the currently active plot. The general syntax for its use is grid(state) where state is either grid('on') to activate the grid lines, or grid('off') to deactivate the grid lines. If you specify no argument then grid toggles the state of the grid: grid You can also specify a particular axis to the grid command grid(handle,...) where handle is the handle for a particular axis.