How to run encoder.m file .following message appears: Undefined function or variable 'raw_message'? appears as i press run button

How to run encoder.m file downloaded from the matlab website .

Undefined function or variable 'raw_message'? appears as i press run button

[Image Analyst]

Attach your code, AFTER you read this link.

Either pass in raw_message via the argument list, or assign it a value before you try to use it.

[Harshit verma]

%% Manchester Encoding

clear all; close all; clc;

len_input = 20;

menchester_input = floor(1.8*rand(1,len_input));

for i = 1:1:len_input

if menchester_input(i) == 1

menchester_output(2*(i-1) + 1 : 2*(i-1) + 2) = [0 1];

else

menchester_output(2*(i-1) + 1 : 2*(i-1) + 2) = [1 0];

end

end

[Menchester_Decode_out] = Menchester_Decoding(menchester_output);