Why am I not getting all the outputs mentioned in my function ?

*The code for my function is given below*
As written in the function statement, I want to have all three of rs2,x,y in my output. However I am getting only rs2 and not x and y. I can not figure out why , please help.

function[rs2,x,y]= rwn(nt)
  nt = 3;
  fprintf('The number of jumps = %d',nt)
  x(1)=0;% start particle at the origin
  y(1)=0;% start particle at the origin
  rs2(1)=0; % square displacement is 0 for first step

    % create a list of random numbers ranging from 1 to 4, with nt entries
    fd=ceil(4.*rand(nt,1))

    % the next two lines define the jumps on the square lattice: right,up, left, down
    delx = [1 0 -1 0];
    dely = [0 1 0 -1];

    % loop over the nt jumps, adding the jump vector choosing the random
    %number from the list generated earlier

    for j=1:nt % sum over nt jumps
    x(j+1)=x(j)+delx(fd(j)); % x position at j+1 jump
    y(j+1)=y(j)+dely(fd(j)); % y position at j+1 jump
    rs2(j+1)=x(j+1)^2 + y(j+1)^2; % square displacement position at j+1 jump
    end
    end

Answer 1

[Star Strider]

Call your function in your calling script as:

[rs2,x,y]= rwn(nt);

If you only call it with one return variable, only the first is returned by default. If you call it with two, the first two, and with three, all three.

[Agnivo Gosai]

Thanks

[Star Strider]

My pleasure.

Answer 2

[James Tursa]

Are you calling the function with three outputs? E.g.,

nt = 3;
[rs2,x,y] = rwn(nt);

[Agnivo Gosai]

I corrected my script. I was not calling with three outputs.