Function Reference
— Built-in Function: any (x, dim)

For a vector argument, return 1 if any element of the vector is nonzero.

For a matrix argument, return a row vector of ones and zeros with each element indicating whether any of the elements of the corresponding column of the matrix are nonzero. For example,

          any (eye (2, 4))
               [ 1, 1, 0, 0 ]

If the optional argument dim is supplied, work along dimension dim. For example,

          any (eye (2, 4), 2)
               [ 1; 1 ]