Question

In MatLab, “> help bi2de” provides the following example:

B = [0 0 1 1; 1 0 1 0];

D = bi2de(B)

But when I try this on my own, I get the following error:

??? Undefined function or method ‘bi2de’ for input arguments of type ‘double’.

Is there something wrong with this function in MatLab?

Answer 1

bi2de is a function in the Communications toolbox. You need to have that toolbox to use it. If you do have that toolbox, then the problem is that your B matrix is being treated as double instead of binary (I don’t have the toolbox so I can’t test this).

Consider using bin2dec, which turns a string representation (‘1011001’, eg) into a decimal number. This function is not part of a toolbox; it’s available as part of the basic MATLAB package.