Display warning only if the "if "statement is not satisfied

Hi,

I want to create an if statement that will warn me ONLY if the “if “ is NOT satisfied

I tried initially,

if qs1==q2 | qs1==q3

'OK '

 else
     'Not ok'

    End

But this expression displays also “ok” if the if statement is satisfied. I want to get ONLY the warning “not ok” if the “if” statement is NOT satisfied.

If the if statement is satisfied then I do not want to display “ok”

thanks

[TAB]

if qs1==q2 | qs1==q3

% 'OK ' -- Don't display this

else
 'Not ok'
end

Answer 1

[Luffy]

 if ~(qs1==q2 | qs1==q3)
 'Not ok'
  end
%If u do not like above 1 do this:
 if qs1==q2 | qs1==q3

 else
 'Not ok'
 end

[antonet]

thanks luffy