Function error in if function

%%file y.m
% Define the function
function [ y ] = x( n )
  if n < 0 | n >= 10 
      y = 0;
  else 
      y = 5;
  end
end

it turns back with Error in y (line 4)

if n < 0 | n >= 10

this is literally copied by my lecturers instructuons.

[Christos Papagrigoriou]

it says not enough input arguments. cheers

Answer 1

[Steven Lord]

If you call your function like this:

y = x()

what value should MATLAB use in the if statement condition where it tries to validate the value of n?

  if n < 0 | n >= 10 

You need to tell the x function what n is, like:

y = x(5)

[Christos Papagrigoriou]

what if I wanna introduce n as a vector like n = -15:18;?

[Christos Papagrigoriou]

Is that related to the not enough input arguments error? Kind regards