hi! can you please guide me how to generate 7 bit binary comibations and assign all of them a unique value?

%4PAM SIGNAL GENERATOR
M=4;
for m=1:M
    a(m)=2*m-1-M;
end
%BINARY INPUT SEQUENCE
x=randi([0 1],1,20);
%BITS TO LEVELS MAPPING
fsk4=[];                    %empty variable
for j=1:2:length(x)-1
if x(j)==0 && x(j+1)==0
       fsk=a(1);
    elseif x(j)==0 && x(j+1)==1
       fsk=a(2);
    elseif x(j)==1 && x(j+1)==1
       fsk=a(3);
    else
       fsk=a(4);
end
       fsk4=[fsk4 fsk];   

end

Answer 1

[Walter Roberson]

M = 2^7;
idx = bin2dec( char(YourBinaryArray + '0') );   %binary combinations assumed across rows
fsk = 2 * idx - M/2 - 1;