MATLAB: How to plot a point on axes above current picture

Question

When I use plot(x,y) function it erases the current data on axes and make blank white axes only with that point.

I would like to plot point above current data so both is visible.

Thanks.

Answer 1

   hold on

The above command allows you to plot data to your current axes without erasing previously plotted data.

If you have multiple axes, use the following:

   hold(my_axes,'on') %Where my_axes is the handle to your axes

Finally, "hold off" and "hold(my_axes,'off')" return the axes to the default setting, where previously plotted data is erased when you plot new data.