GRID Plot Grid Toggle Function

Section: Handle-Based Graphics

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.

Example

Here is a simple plot without grid lines. 
--> x = linspace(-1,1);
--> y = cos(3*pi*x);
--> plot(x,y,'r-');

Next, we activate the grid lines. 

--> plot(x,y,'r-');
--> grid on