Please help, I'm trying to make a function but I keep getting major errors and I dont know why.

function [y,x]=position(N,IS)

for i=1:N
         if IS(i)==1 % checks if ligand is active and give new position
         dx=randi([-360,360],1);
         dy=randi([-50,50],1);
         x(i)=x(i)+dx;
         y(i)=y(i)+dy; 
         end 
end

The errors are this

Not enough input arguments.

Error in position (line 4)

if IS(i)==1 % checks if ligand is active and give new position

Answer 1

[Image Analyst]

Did you assign the input arguments before you called it, liks

N = 5;
IS = ones(N, 1);
[y,x]=position(N,IS)

Probably not. You probably just clicked the green run triangle without sending in any input arguments. You can't do that if input arguments are required. You must assign them and pass them in. You can do this in the command window or a script.