4 columns: x y xdelta ydelta 6 columns: x y xlow xhigh ylow yhigh
The box width and height are determined from the x and y errors in the same way as they are for the xyerrorbars style -- either from xlow to xhigh and from ylow to yhigh, or from x-xdelta to x+xdelta and from y-ydelta to y+ydelta, depending on how many data columns are provided.
The interior of the boxes is drawn according to the current fillstyle.
See set style fill (p. ) and boxes (p.
) for details. Alternatively a new fillstyle
may be specified in the plot command.