Shawn Mikula

just what I was looking for

Didn't realize my comment would be posted immediately. Should have said that the updated enumBase2 should appear in 1-2 days. But for those who don't want to wait, here it is:

function [a] = enumBase2(varargin)

% a = enumBase2(n) constructs a cell array that enumerates from 0 to (2^n - 1) in binary.
%
% a = enumBase2(n,outputformat) constructs an array that enumerates from 0
% to (2^n - 1) in binary. The type of array output is given by
% outputformat. By default, outputformat=1, which outputs a cell array.
% If outputformat=2, then the output is a numeric array.
%
% Examples
% -------
% numBase2(4) returns the following cell array:
% 0000
% 0001
% 0010
% 0011
% 0100
% 0101
% 0110
% 0111
% 1000
% 1001
% 1010
% 1011
% 1100
% 1101
% 1110
% 1111
%
% numBase2(4,2) output the same as above, except as a numeric array.
%
% Useful for combinatorics.

try
    n = varargin{1}
catch
error('try "help enumBase2"')
end
try
    formout = varargin{2}
catch
formout = 1;
end
if formout==1
a=dec2bin(0:(2^n-1));
elseif formout==2
    aTemp=dec2bin(0:(2^n-1));
    a=ones(2^n-1,n);
    for i=1:n
        for j=1:2^n
            a(j,i)=str2num(aTemp(j,i));
        end
    end
else
    error('try "help enumBase2"')
    
end