function ( add=F,  legend.shrink = 0.9, legend.width =
0.04, horizontal = F, offset = 2 * legend.width,
    bigplot = NULL, smallplot = NULL)
function ( add=F,  legend.shrink = 0.9, legend.width =
0.04, horizontal = F, offset = 2 * legend.width,
    bigplot = NULL, smallplot = NULL)
