// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA - Farid BELAHCENE
// Copyright (C) DIGITEO - 2011 - Allan CORNET
//
// This file must be used under the terms of the CeCILL.
// This source file is licensed as described in the file COPYING, which
// you should have received as part of this distribution.  The terms
// are also available at
// http://www.cecill.info/licences/Licence_CeCILL_V2.1-en.txt

function r = isvector(x)

    // Checks if all dimensions of x but one are 1
    // Input: x
    // Output: r = boolean value (true if x is a vector)
    rhs = argn(2);
    if rhs <> 1 then
        error(msprintf(gettext("%s: Wrong number of input argument(s): %d expected.\n"),"isvector", 1));
    end
    nbones = 0;
    n = size(size(x), "*");
    r = %F;
    for k = 1:n
        if size(x,k) == 1 then
            nbones = nbones + 1;
        elseif size(x, k) == 0 then
            return
        end
    end
    r = (nbones == (n - 1));
endfunction