bar3d.ade(data, data=NULL, xw=1, zw=0.5,
           main=NULL, xlab="Magnitude", ylab="Event Frequency", zlab="Distance",
           xticks=NULL, yticks=NULL, zticks=NULL,
           col="blue", tcol=NULL, bgcol=NULL, lcol=NULL, alpha=0.8,
           axes=TRUE, fgbox=TRUE, bgbox=TRUE, wall=3)