Plotting in a 3D space

I have a vector r=[1;0;-1]; and I would like to plot this in the 3D space. Can anyone please help me with this?

Answer 1

[Voss]

This will plot a line segment from the origin to the point (1,0,-1):

plot3([0 r(1)],[0 r(2)],[0 r(3)]);

[Gopika R]

Thank you

Answer 2

[madhan ravi]

r = num2cell(r);
plot3(r{:}, '*')

[Gopika R]

Thank you..