Please I have a code, when I run, it keeps saying: "Error using grid First argument must be an axes handle".

xlabel('Energy (MeV)')

ylabel('Energy integrated neutron flux (a.u.)')

grid on

grid minor off

box on

Answer 1

[Abderrahim. B]

This grid minor off is not correct .

Learn how to use grid:

doc grid 

Try this:

xlabel('Energy (MeV)')
ylabel('Energy integrated neutron flux (a.u.)')
grid on
grid minor 
box on

[Sedulous12]

Many thanks Abderrahim BELISSAOUI

[Abderrahim. B]

You are welcome. If you found this answer helpful, accept it so that others with some issue can refer to it.