Simple question about functions

Hello, just a simple question about functions. What I want to do is use a function in main code, and create a new variable from within a structure. My main code reads

 practicefcn()
 x=data1.x;

My function reads

 function [ data1,x ] = practicefcn()
 data1.x=5;
 data1.y=4;
 end

This gives me an error. Hopefully you see what I want to do. I want to create a datastructure where x = 5 within that data structure, but also I want to create a separate variable where x = 5, defined outside of the data structure. Thanks!

Answer 1

[Andrei Bobrov]

data1 = practicefcn();
x = data1.x;