Fix bar graph y-axis scaling
Fix bar graph y-axis scaling

For categorical x-axis, the right<=x<=left comparison has no meaning.

airspeed-velocity/asv,spacetelescope/asv,spacetelescope/asv,pv/asv,pv/asv,qwhelan/asv,airspeed-velocity/asv,pv/asv,qwhelan/asv,spacetelescope/asv,spacetelescope/asv,qwhelan/asv,airspeed-velocity/asv,pv/asv,qwhelan/asv,airspeed-velocity/asv