xerrorbars

The xerrorbars style is only relevant to 2D data plots. xerrorbars is like points, except that a horizontal error bar is also drawn. At each point (x,y), a line is drawn from (xlow,y) to (xhigh,y) or from (x-xdelta,y) to (x+xdelta,y), depending on how many data columns are provided. The appearance of the tic mark at the ends of the bar is controlled by set errorbars. The clearance between the point and the error bars is controlled by set pointintervalbox. To have the error bars pass directly through the point with no interruption, use unset pointintervalbox. The basic style requires either 3 or 4 columns:

     3 columns:  x  y  xdelta
     4 columns:  x  y  xlow  xhigh

An additional input column (4th or 5th) may be used to provide variable color. This style does not permit variable point properties.