I need missing border lines of the box (black color)

The picture attaches is with

set(gca,'Box','on')

already on . But it couldn't covered all the corners of the box

Thanks Harald Kirchsteiger

set(gca,'BoxStyle','full')

It worked.

How to make a 3D surface plot for the following data,i.e.,

x= [0, 4 ,5, 6 ,7]

y=[9, 8, 99, 76, 187]

z=[87, 89, 76, 33, 12]

Note that there is no explicit relation between any of the three variables: x, y, and z. I know that in MATLAB, we can use the surf function but it's only possible if z=f(x,y) which is not the case here . Please respond what to do. Thanks.