Shannon-fano encoder

%made by Jamil Kasan from Manila, Philippines
%input = row matrix of occurrences or probabilities e.g. ss=[1 3 4 5] or
%ss=[0.4 0.3 0.2 0.1]
%outputs = string of codewords,average codeword length

to try its credibility, play sf encoder (need to change the location of ff7.txt)

sfencoderkasan is a function file for shannon-fano encoder
its input is a row matrix of occurrences or probabilities
its outputs are ​codex which is the codewords and T which is the average codeword length