/* get ytic, ticval or -1 */
_gytic(w)
{
        local tic;

        if (argc < 1)
        {
                if (getyticset) tic = getytic;
                else tic = -1;
        }
        else
        {
                if (getyticset(w)) tic = getytic(w);
                else tic = -1;
        }
        return(tic);
}